Delete VR project
Simplify MaterialSystem2 VR code, don't do any native VR setup
Initial basic managed openvr setup - just logs hmd position to console for now
Debug all tracked devices
Skeletal input data
Actions, action sets, action state, analog input data
Move native wrapper functions into VRNative class
Rename enum values
Remove unused input source strings
Hook up compositor, settings, device properties & info
Move constants
