Design/add feature to remotely update pedal calibration over CAN

[mathbrook]

Add feature to VCU code so that the pedal ranges can be updated without re-flashing the VCU
(lower and upper out of range boundaries, and start and stop thresholds for torque calculation)

rough ideas:

• send CAN message with fields PARAM and VALUE: param is the field to set, and value is the value to set it to
• send CAN message to tell VCU to set current position to PARAM: param would be field to set, and vcu will auto set value to current
• reject out of range (less than 0 or greater than 4095)
• has to keep this value in eeprom or other NVM

other things:

• add a CAN message to tell us the current settings (either periodic or triggered)
• add a CAN message to tell us the current torque calc (give visibility into the torque calculation function)