members:
	public PolarVector normalVector (N), upVector (U), perpVector (V)
	public Vector3 CameraPosition, ReferencePosition
	
	private bool canMoveInY
	
functions:
	public ObjectRotation()
	public ObjectRotation(Vector3 position, Vector3 reference)
	
	public void Copy(ObjectRotation original)
	
	//Pan object on the UV plane
	public void Pan(float dx, float dy)
	//Move forwards or backwards along normal
	public void Move(float dn)
	//Rotate the coordinate system
	public void Rotate(float dLat, float dLong)