Implement GOCI in Ladybug

[MatteoFBC]

Hi, that's a proposition to add GOCI in Ladybug.
Here’s the reference equation, derived from: https://www.sciencedirect.com/science/article/abs/pii/S0360132317305899?via%3Dihub

GOCI = − 0.908 + 0.053·MRT + 0.084·Tair + 0.006·RH − 0.229· WS - 0.056·TAV -0.026·TM - 0.042· Tm + 0.009·L
with
Air temperature Tair, mean radiant temperature MRT, relative humidity RH, wind velocity WS and, with respect to the examined location, latitude L, altitude h, mean annual temperature TAV, mean temperatures of the hottest months TM and coldest months Tm.
Results interpretation follows the image below
Many thanks!