* Updated OpenVR implementation to 1.0.9
User can specify external OpenVR library to load with
openvr.library.path system property.
Usage: java -Dopenvr.library.name=my_path_to_library MyApp
Removed reference to OCCULUS VR and OpenVR from VRAppstate as this class
is generic and does not have to be linked to specific implementation.
VRMouseManager can be buggous using OSVR or Occulus VR.
Refactored VR implementation packages in order to separate all available
implementation. Modifying or adding implementation should no more impact
other ones.
Renamed some classes in order to be uniform
Julien Seinturier
58a9211879