Add Color Mode enum property to robot model
Add Color Mode enum property to robot model

patmarion/director,mitdrc/director,openhumanoids/director,mitdrc/director,RobotLocomotion/director,manuelli/director,patmarion/director,manuelli/director,manuelli/director,openhumanoids/director,mitdrc/director,RobotLocomotion/director,RobotLocomotion/director,manuelli/director,openhumanoids/director,patmarion/director,RobotLocomotion/director,mitdrc/director,openhumanoids/director,openhumanoids/director,mitdrc/director,patmarion/director,patmarion/director,manuelli/director,RobotLocomotion/director