Add gears for robotic parts

[salaminho]

One thing I miss when creating machines and other stuff with robotic parts are cogwheels, gears, screw gears, chain gears, etc... Basically ways to redirect rotational movement and amplify speed or torque. This would open a huge variety of possibilities.

I don't know how hard would it be to program this in game or in a future DLC, or if it would be too much to ask for, but it would be awesome!