Write control code for auxiliary motors

[partlygloudy]

Which section of robot code is this for?
Vision, Sensor Integration

Description of feature
We'll have a few motors on the robot which aren't part of the drive system or digging system. We'll have a motor (possibly two) to pan the marker camera, as well as a motor for each camera to wipe the area in front of the lens. We need to:

1. Plan the electrical layout of this (either we'll have some type of Arduino hooked up to these motors and the Jetson will communicate with the Arduino, or the Jetson will control them directly)
2. Once the control layout is decided, write a node that moves the motors in response to commands (sweeps the wipers in response to a "wipe" command, sets the position of the panning motor in response to a position message)

Not high priority at the moment but we should at least address part 1 before too long