more organization. Renamed private members. No breaking changes.
more organization. Renamed private members. No breaking changes.

ForrestTrepte/HoloToolkit-Unity,HattMarris1/HoloToolkit-Unity,paseb/HoloToolkit-Unity,paseb/MixedRealityToolkit-Unity,willcong/HoloToolkit-Unity,NeerajW/HoloToolkit-Unity,out-of-pixel/HoloToolkit-Unity