This adds the REV Analog Pressure Sensor PSI to volt (and vice versa) conversion to allow setting the compressor config in PSI and getting the sensor reading in PSI. Also adds input validation for pressure values at the higher level.
Co-authored-by: Tyler Veness <calcmogul@gmail.com>
More functionality was implemented at the HAL level, so expose that to the wpilib level.
This also does units changes for all the PH related functionality.
