Add pybullet setVRCameraState and b3SetVRCameraStateCommandInit to set the VR camera root transform (position/orientation) and optional tracking object unique id (-1 for no tracking)

Fix robotcontrol.py script, getContactPointData -> getContactPoints

examples/SharedMemory/SharedMemoryPublic.h

@@ -46,6 +46,8 @@ enum EnumSharedMemoryClientCommand
     CMD_SET_SHADOW,
 	CMD_USER_DEBUG_DRAW,
 	CMD_REQUEST_VR_EVENTS_DATA,
+	CMD_SET_VR_CAMERA_STATE,
+
     //don't go beyond this command!
     CMD_MAX_CLIENT_COMMANDS,