Missing a py37 build for Windows x64 + fix py38 win32 and py39 win32 (#2120)
Missing a py37 build for Windows x64 + fix py38 win32 and py39 win32 (#2120)

* Missing a py37 build for Windows x64
CoolProp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,henningjp/CoolProp