Collector Subsystem class

[oxume]

The collector actuation has two NEOs on opposite sides of the robot with separate MA3 encoders. The encoders should probably be zeroed when the lower 1x1 of the collector is against the bumper rail as that is the only solid hard stop that both sides will collide with. The MA3s are 1:1 with the lower 1x1 of the collector four-bar.
For now, the intake itself only needs to have analog control, and the hopper is a separate subsystem that will be synchronized by commands.