Currently, the Tilt subsystem has an encoder and two limit switches. The following needs to be done:
remove encoder and limit switches
replace with string pot. This will be read as an analog value. The string pot will also serve to indicate when the tilt has "hit limits" (if above value x, "limit" it; if below value y, "limit" it).
in SetTiltPosition, make the command not work if we lose string pot (this happens if we give the motors an input but the value does not change.
Currently, the Tilt subsystem has an encoder and two limit switches. The following needs to be done: