Add support for C-Factor and F-Factor boundary conditions

[chriswmackey]

I know that C-Factors and F-Factors are technically constructions but I think they would probably be better represented in the schema as their own type of boundary condition that gets added by honeybee-energy to the core set of boundary conditions. This way, there's still a "real" construction to fall back on if someone changes the boundary condition.

I am thinking that we can have a method that loops through the faces to find any ground boundary conditions and then tries to convert them to C or F factors by analyzing the geometry. So we would just expose this in Grasshopper as a component that takes a list of rooms or a model and converts "Ground to C/F-Factors".

More info here:
https://discourse.ladybug.tools/t/ashrae-90-1-f-factors-for-floors/14267/3