[feature] PID control for the motor faders

[Tommie1236]

motor faders barely work at half the voltage/speed they are designed for.
if run with higher than 5v (should be 10 and testing at 12) they have a difficult time reaching the correct location and just vibrate because of overshooting the location.

so speed control with pwm and if possible PID.

[Tommie1236]

decided to use a separate mcu for the fader wings.
cause otherwise all the pid control/feedback had to go through 3+ levels of gpio expanders

now using something like a rp2040 on each wing that is directly connected to whatever is needed for the pid. that should also decreade the time needed/complexity for the other controls on that wing.

[Tommie1236]

https://tttapa.github.io/Pages/Arduino/Control-Theory/Motor-Fader/index.html

this one uses the exact same faders as i use. so i can probably just use this code and pid parameters.