[#83818422] Separate radiance/energyplus packaging

-Splits PACKAGE_ENERGYPLUS_AND_RADIANCE into PACKAGE_ENERGYPLUS and
PACKAGE_RADIANCE.
-Passes new options down to OSCore
-Cleans up some path walking code to deal with recent-ish changes to
installation folder layout
@lefticus why are you doing this copy.  Why not install directly from where EnergyPlus is sitting?  Is it so that run manager is properly tested from a build tree?  I'm inclined to remove this, because it is costly and happens at every configure over and over.