(master/all branches) Introduce Pneumatic Subsystem and hardware classes

https://github.com/Trip-kun/Robotics5183/blob/Rosco/src/main/java/frc/robot/subsystem/PneumaticBase.java
and
https://github.com/Trip-kun/Robotics5183/tree/Rosco/src/main/java/frc/robot/hardware/pneumatic

can be used as reference, but all new code should be documented and fitted to any changes in the new codebase