diff --git a/Pipfile.lock b/Pipfile.lock
index 5956c64..c73820b 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,26 +18,40 @@
     "default": {
         "atomicwrites": {
             "hashes": [
-                "sha256:0312ad34fcad8fac3704d441f7b317e50af620823353ec657a53e981f92920c0",
-                "sha256:ec9ae8adaae229e4f8446952d204a3e4b5fdd2d099f9be3aaf556120135fb3ee"
+                "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197",
+                "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"
             ],
-            "markers": "python_version >= '2.7' and python_version != '3.0.*' and python_version != '3.1.*' and python_version != '3.2.*' and python_version != '3.3.*'",
-            "version": "==1.2.1"
+            "version": "==1.4.0"
         },
         "attrs": {
             "hashes": [
-                "sha256:10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69",
-                "sha256:ca4be454458f9dec299268d472aaa5a11f67a4ff70093396e1ceae9c76cf4bbb"
+                "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6",
+                "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"
             ],
-            "version": "==18.2.0"
+            "version": "==20.3.0"
         },
         "backports.functools-lru-cache": {
             "hashes": [
-                "sha256:9d98697f088eb1b0fa451391f91afb5e3ebde16bbdb272819fd091151fda4f1a",
-                "sha256:f0b0e4eba956de51238e17573b7087e852dfe9854afd2e9c873f73fc0ca0a6dd"
+                "sha256:d5ed2169378b67d3c545e5600d363a923b09c456dab1593914935a68ad478271",
+                "sha256:dbead04b9daa817909ec64e8d2855fb78feafe0b901d4568758e3a60559d8978"
             ],
-            "markers": "python_version >= '2.6'",
-            "version": "==1.5"
+            "version": "==1.6.4"
+        },
+        "configparser": {
+            "hashes": [
+                "sha256:254c1d9c79f60c45dfde850850883d5aaa7f19a23f13561243a050d5a7c3fe4c",
+                "sha256:c7d282687a5308319bf3d2e7706e575c635b0a470342641c93bea0ea3b5331df"
+            ],
+            "markers": "python_version < '3'",
+            "version": "==4.0.2"
+        },
+        "contextlib2": {
+            "hashes": [
+                "sha256:01f490098c18b19d2bd5bb5dc445b2054d2fa97f09a4280ba2c5f3c394c8162e",
+                "sha256:3355078a159fbb44ee60ea80abd0d87b80b78c248643b49aa6d94673b413609b"
+            ],
+            "markers": "python_version < '3'",
+            "version": "==0.6.0.post1"
         },
         "cycler": {
             "hashes": [
@@ -54,39 +68,55 @@
             "markers": "python_version < '3.0'",
             "version": "==1.0.2"
         },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:b8de9eff2b35fb037368f28a7df1df4e6436f578fa74423505b6c6a778d5b5dd",
+                "sha256:c2d6341ff566f609e89a2acb2db190e5e1d23d5409d6cc8d2fe34d72443876d4"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==2.1.1"
+        },
         "kiwisolver": {
             "hashes": [
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-                "sha256:2874060b91e131ceeff00574b7c2140749c9355817a4ed498e82a4ffa308ecbc",
-                "sha256:379d97783ba8d2934d52221c833407f20ca287b36d949b4bba6c75274bcf6363",
-                "sha256:3b791ddf2aefc56382aadc26ea5b352e86a2921e4e85c31c1f770f527eb06ce4",
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-                "sha256:95a25d9f3449046ecbe9065be8f8380c03c56081bc5d41fe0fb964aaa30b2195",
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+                "sha256:3b2378ad387f49cbb328205bda569b9f87288d6bc1bf4cd683c34523a2341efe",
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+                "sha256:5c7ca4e449ac9f99b3b9d4693debb1d6d237d1542dd6a56b3305fe8a9620f883",
+                "sha256:682e54f0ce8f45981878756d7203fd01e188cc6c8b2c5e2cf03675390b4534d5",
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+                "sha256:79bfb2f0bd7cbf9ea256612c9523367e5ec51d7cd616ae20ca2c90f575d839a2",
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+                "sha256:9105ce82dcc32c73eb53a04c869b6a4bc756b43e4385f76ea7943e827f529e4d",
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+                "sha256:939f36f21a8c571686eb491acfffa9c7f1ac345087281b412d63ea39ca14ec4a",
+                "sha256:9491578147849b93e70d7c1d23cb1229458f71fc79c51d52dce0809b2ca44eea",
+                "sha256:9733b7f64bd9f807832d673355f79703f81f0b3e52bfce420fc00d8cb28c6a6c",
+                "sha256:a02f6c3e229d0b7220bd74600e9351e18bc0c361b05f29adae0d10599ae0e326",
+                "sha256:a0c0a9f06872330d0dd31b45607197caab3c22777600e88031bfe66799e70bb0",
+                "sha256:aa716b9122307c50686356cfb47bfbc66541868078d0c801341df31dca1232a9",
+                "sha256:acc4df99308111585121db217681f1ce0eecb48d3a828a2f9bbf9773f4937e9e",
+                "sha256:b64916959e4ae0ac78af7c3e8cef4becee0c0e9694ad477b4c6b3a536de6a544",
+                "sha256:d22702cadb86b6fcba0e6b907d9f84a312db9cd6934ee728144ce3018e715ee1",
+                "sha256:d3fcf0819dc3fea58be1fd1ca390851bdb719a549850e708ed858503ff25d995",
+                "sha256:d52e3b1868a4e8fd18b5cb15055c76820df514e26aa84cc02f593d99fef6707f",
+                "sha256:db1a5d3cc4ae943d674718d6c47d2d82488ddd94b93b9e12d24aabdbfe48caee",
+                "sha256:e3a21a720791712ed721c7b95d433e036134de6f18c77dbe96119eaf7aa08004",
+                "sha256:e8bf074363ce2babeb4764d94f8e65efd22e6a7c74860a4f05a6947afc020ff2",
+                "sha256:f16814a4a96dc04bf1da7d53ee8d5b1d6decfc1a92a63349bb15d37b6a263dd9",
+                "sha256:f2b22153870ca5cf2ab9c940d7bc38e8e9089fa0f7e5856ea195e1cf4ff43d5a",
+                "sha256:f790f8b3dff3d53453de6a7b7ddd173d2e020fb160baff578d578065b108a05f",
+                "sha256:fe51b79da0062f8e9d49ed0182a626a7dc7a0cbca0328f612c6ee5e4711c81e4"
             ],
-            "markers": "python_version >= '2.7' and python_version != '3.0.*' and python_version != '3.1.*' and python_version != '3.2.*' and python_version != '3.3.*'",
-            "version": "==1.0.1"
+            "version": "==1.1.0"
         },
         "matplotlib": {
             "hashes": [
@@ -118,11 +148,11 @@
         },
         "more-itertools": {
             "hashes": [
-                "sha256:c187a73da93e7a8acc0001572aebc7e3c69daf7bf6881a2cea10650bd4420092",
-                "sha256:c476b5d3a34e12d40130bc2f935028b5f636df8f372dc2c1c01dc19681b2039e",
-                "sha256:fcbfeaea0be121980e15bc97b3817b5202ca73d0eae185b4550cbfce2a3ebb3d"
+                "sha256:38a936c0a6d98a38bcc2d03fdaaedaba9f412879461dd2ceff8d37564d6522e4",
+                "sha256:c0a5785b1109a6bd7fac76d6837fd1feca158e54e521ccd2ae8bfe393cc9d4fc",
+                "sha256:fe7a7cae1ccb57d33952113ff4fa1bc5f879963600ed74918f1236e212ee50b9"
             ],
-            "version": "==4.3.0"
+            "version": "==5.0.0"
         },
         "numpy": {
             "hashes": [
@@ -160,34 +190,33 @@
         },
         "pathlib2": {
             "hashes": [
-                "sha256:8eb170f8d0d61825e09a95b38be068299ddeda82f35e96c3301a8a5e7604cb83",
-                "sha256:d1aa2a11ba7b8f7b21ab852b1fb5afb277e1bb99d5dfc663380b5015c0d80c5a"
+                "sha256:0ec8205a157c80d7acc301c0b18fbd5d44fe655968f5d947b6ecef5290fc35db",
+                "sha256:6cd9a47b597b37cc57de1c05e56fb1a1c9cc9fab04fe78c29acd090418529868"
             ],
             "markers": "python_version < '3.6'",
-            "version": "==2.3.2"
+            "version": "==2.3.5"
         },
         "pluggy": {
             "hashes": [
-                "sha256:6e3836e39f4d36ae72840833db137f7b7d35105079aee6ec4a62d9f80d594dd1",
-                "sha256:95eb8364a4708392bae89035f45341871286a333f749c3141c20573d2b3876e1"
+                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
+                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "markers": "python_version >= '2.7' and python_version != '3.0.*' and python_version != '3.1.*' and python_version != '3.2.*' and python_version != '3.3.*'",
-            "version": "==0.7.1"
+            "version": "==0.13.1"
         },
         "py": {
             "hashes": [
-                "sha256:06a30435d058473046be836d3fc4f27167fd84c45b99704f2fb5509ef61f9af1",
-                "sha256:50402e9d1c9005d759426988a492e0edaadb7f4e68bcddfea586bc7432d009c6"
+                "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
+                "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"
             ],
-            "markers": "python_version >= '2.7' and python_version != '3.0.*' and python_version != '3.1.*' and python_version != '3.2.*' and python_version != '3.3.*'",
-            "version": "==1.6.0"
+            "index": "pypi",
+            "version": "==1.10.0"
         },
         "pyparsing": {
             "hashes": [
-                "sha256:0832bcf47acd283788593e7a0f542407bd9550a55a8a8435214a1960e04bcb04",
-                "sha256:fee43f17a9c4087e7ed1605bd6df994c6173c1e977d7ade7b651292fab2bd010"
+                "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
+                "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
             ],
-            "version": "==2.2.0"
+            "version": "==2.4.7"
         },
         "pytest": {
             "hashes": [
@@ -199,34 +228,34 @@
         },
         "python-dateutil": {
             "hashes": [
-                "sha256:1adb80e7a782c12e52ef9a8182bebeb73f1d7e24e374397af06fb4956c8dc5c0",
-                "sha256:e27001de32f627c22380a688bcc43ce83504a7bc5da472209b4c70f02829f0b8"
+                "sha256:73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c",
+                "sha256:75bb3f31ea686f1197762692a9ee6a7550b59fc6ca3a1f4b5d7e32fb98e2da2a"
             ],
-            "version": "==2.7.3"
+            "version": "==2.8.1"
         },
         "pytz": {
             "hashes": [
-                "sha256:a061aa0a9e06881eb8b3b2b43f05b9439d6583c206d0a6c340ff72a7b6669053",
-                "sha256:ffb9ef1de172603304d9d2819af6f5ece76f2e85ec10692a524dd876e72bf277"
+                "sha256:83a4a90894bf38e243cf052c8b58f381bfe9a7a483f6a9cab140bc7f702ac4da",
+                "sha256:eb10ce3e7736052ed3623d49975ce333bcd712c7bb19a58b9e2089d4057d0798"
             ],
-            "version": "==2018.5"
+            "version": "==2021.1"
         },
         "scandir": {
             "hashes": [
-                "sha256:04b8adb105f2ed313a7c2ef0f1cf7aff4871aa7a1883fa4d8c44b5551ab052d6",
-                "sha256:1444134990356c81d12f30e4b311379acfbbcd03e0bab591de2696a3b126d58e",
-                "sha256:1b5c314e39f596875e5a95dd81af03730b338c277c54a454226978d5ba95dbb6",
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-                "sha256:c14701409f311e7a9b7ec8e337f0815baf7ac95776cc78b419a1e6d49889a383",
-                "sha256:c7708f29d843fc2764310732e41f0ce27feadde453261859ec0fca7865dfc41b",
-                "sha256:c9009c527929f6e25604aec39b0a43c3f831d2947d89d6caaab22f057b7055c8",
-                "sha256:f5c71e29b4e2af7ccdc03a020c626ede51da471173b4a6ad1e904f2b2e04b4bd"
+                "sha256:2586c94e907d99617887daed6c1d102b5ca28f1085f90446554abf1faf73123e",
+                "sha256:2ae41f43797ca0c11591c0c35f2f5875fa99f8797cb1a1fd440497ec0ae4b022",
+                "sha256:2b8e3888b11abb2217a32af0766bc06b65cc4a928d8727828ee68af5a967fa6f",
+                "sha256:2c712840c2e2ee8dfaf36034080108d30060d759c7b73a01a52251cc8989f11f",
+                "sha256:4d4631f6062e658e9007ab3149a9b914f3548cb38bfb021c64f39a025ce578ae",
+                "sha256:67f15b6f83e6507fdc6fca22fedf6ef8b334b399ca27c6b568cbfaa82a364173",
+                "sha256:7d2d7a06a252764061a020407b997dd036f7bd6a175a5ba2b345f0a357f0b3f4",
+                "sha256:8c5922863e44ffc00c5c693190648daa6d15e7c1207ed02d6f46a8dcc2869d32",
+                "sha256:92c85ac42f41ffdc35b6da57ed991575bdbe69db895507af88b9f499b701c188",
+                "sha256:b24086f2375c4a094a6b51e78b4cf7ca16c721dcee2eddd7aa6494b42d6d519d",
+                "sha256:cb925555f43060a1745d0a321cca94bcea927c50114b623d73179189a4e100ac"
             ],
             "markers": "python_version < '3.5'",
-            "version": "==1.9.0"
+            "version": "==1.10.0"
         },
         "scipy": {
             "hashes": [
@@ -264,18 +293,25 @@
         },
         "six": {
             "hashes": [
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
+                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
             ],
-            "version": "==1.11.0"
+            "version": "==1.15.0"
         },
         "subprocess32": {
             "hashes": [
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-                "sha256:eb2b989cf03ffc7166339eb34f1aa26c5ace255243337b1e22dab7caa1166687"
+                "sha256:88e37c1aac5388df41cc8a8456bb49ebffd321a3ad4d70358e3518176de3a56b",
+                "sha256:e45d985aef903c5b7444d34350b05da91a9e0ea015415ab45a21212786c649d0",
+                "sha256:eb2937c80497978d181efa1b839ec2d9622cf9600a039a79d0e108d1f9aec79d"
+            ],
+            "version": "==3.5.4"
+        },
+        "zipp": {
+            "hashes": [
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+                "sha256:e0d9e63797e483a30d27e09fffd308c59a700d365ec34e93cc100844168bf921"
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-            "markers": "python_version != '3.2.*' and python_version != '3.0.*' and python_version != '3.1.*' and python_version < '4' and python_version >= '2.6'",
-            "version": "==3.5.2"
+            "version": "==1.2.0"
         }
     },
     "develop": {}