This has the same effect but makes it so any user code returning CommandPtr can't discard a returned command.
Signed-off-by: Eric Ward <ezeward4@gmail.com>
Moves all CommandBase functionality into Command and deprecates CommandBase for removal.
Moves all SubsystemBase functionality into Subsystem and deprecates SubsystemBase for removal.
Adds a function to CommandScheduler to remove all registered Subsystems.
