Added auger constant and renamed conveyor and collector constants in Components.
Added initDefaultCommand to Subsystem1816.

This would allow us to skip adding this method to all the subsystems.
Added SetAugerCommand.

The command will set the direction of the auger's motor.
Removed initDefaultCommand method from all subsystems.

The method was added to Subsystem1816 so it is no longer needed inside
in the subsystem classes.