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* Renamed function to_calc to t_o
* Fixed error calculation of relative air speed
* renamed input parameter ta to tdb
* Added function to calculate mean radiant temperature from black globe temperature
* Added function to calculate solar gain on people
* Added functions to calculate vapour pressure, wet-bulb temperature, dew point temperature, and psychrometric data from dry bulb temperature and RH
* Added authors
* Added dictionaries with reference clo and met values
* Added function to calculate enthalpy_air