Night owl support

[sfider]

Went through the trouble of switching my fork to your repo just to PR this hacky thing. Hope you'll enjoy it :)

[b12f]

Hey @sfider, thanks so much!

I've ran tests on your branch and it seems to fail:

=================================================================== short test summary info ====================================================================
FAILED tests/test_config.py::test_config_get - AssertionError: assert None == 'foo'
FAILED tests/test_config.py::test_config_getboolean - AssertionError: assert False is True
FAILED tests/test_config.py::test_config_getint - AssertionError: assert None == 42
FAILED tests/test_config.py::test_config_getfloat - AssertionError: assert None == 3.14
FAILED tests/test_config.py::test_config_getlist - AssertionError: assert [] == ['one', 'two ...', 'five six']
FAILED tests/test_watson.py::test_wrong_config - Failed: DID NOT RAISE <class 'watson.watson.ConfigurationError'>
FAILED tests/test_watson.py::test_start_default_tags - AssertionError: assert [] == ['A', 'B']
FAILED tests/test_watson.py::test_start_default_tags_with_supplementary_input_tags - AssertionError: assert ['C', 'D'] == ['C', 'D', 'A', 'B']
========================================================== 8 failed, 338 passed, 77 warnings in 0.74s ==========================================================

Also @teutat3s I thought we enabled checks for this repo, maybe it's not running for PRs with external branches yet? I'll check if I can find out why

[teutat3s]

If you rebase this on latest main, the CI should trigger as expected.

[sfider]

All failing tests assume the config won't be read on Watson object initialization. I broke that assumption by reading 'day_start_hour' from config in Watson.__init__. I think this is the best place to do this, so probably those tests should be redesigned. However, I don't really know pytest nor I have the time to learn it, so I won't be able to complete this PR, sorry.