Fix predictOM and predictSalary

[j-harbin]

• Make ggplots
• Stop "gapping" twice
• Gap properly (e.g. 2 % the first year, and then 2 % from that new value the second year and so on)

[j-harbin]

ggplot and fix gapping twice for predictOM commit cbb18e5

[j-harbin]

ggplot and fix gapping twice for predictSalary commit bd07386

[j-harbin]

consecutive gapping for predictOM commit 89e7125

[j-harbin]

For predictSalary to do the consecutive years I will take the soi (shown below) and use hte lag function to do smaller number divisded by bigger number. I will then have percentages and take the mean. THEN I will 1.mean ^ 3 (for years). I am expecting an average mean of ~ 0.3.