Add Semaphore-Like Behavior For Manual Overrides

[Litemage]

All of our subsystems that use closed-loop control somehow use a manual override system to flag to other functions that the robot is under manual control and should not perform any closed loop control. Maybe we could add an interface that all of our subsystems (that use closed-loop control) should inherit, which will add a flag that tracks manual control and is accessed with functions like:
GetIsManuallyOverriden()
TakeManualOverride()
ReleaseManualOverride()

Obviously the names are a little wonky, but the concept is there. We get the status with GetIsManuallyOverriden() override the system with TakeManualOverride() and allow closed loop control again with ReleaseManualOverride() all functions that implement closed loop in the subsystem will check these functions before doing any closed loop.