add hand.py/hand.ino used to create this VR glove, using MuJoCo Haptix MPL hand (Apache 2 license)

https://www.youtube.com/watch?v=VMJyZtHQL50
added b3InitSyncBodyInfoCommand, to retrieve body info, when connecting to a server with existing bodies
pybullet will call this b3InitSyncBodyInfoCommand automatically after connecting
Avoid overriding the py.setVRCameraState setting in VR

examples/SharedMemory/SharedMemoryPublic.h

@@ -47,7 +47,7 @@ enum EnumSharedMemoryClientCommand
 	CMD_USER_DEBUG_DRAW,
 	CMD_REQUEST_VR_EVENTS_DATA,
 	CMD_SET_VR_CAMERA_STATE,
-
+	CMD_SYNC_BODY_INFO,
     //don't go beyond this command!
     CMD_MAX_CLIENT_COMMANDS,
     
@@ -115,6 +115,8 @@ enum EnumSharedMemoryServerStatus
 		CMD_USER_CONSTRAINT_FAILED,
 		CMD_REQUEST_VR_EVENTS_DATA_COMPLETED,
 		CMD_REQUEST_RAY_CAST_INTERSECTIONS_COMPLETED,
+		CMD_SYNC_BODY_INFO_COMPLETED,
+		CMD_SYNC_BODY_INFO_FAILED,
         //don't go beyond 'CMD_MAX_SERVER_COMMANDS!
         CMD_MAX_SERVER_COMMANDS
 };