added driveComponents
moved all you need for driveTrain, and deleted all files that was not needed
deleted extra buttons
added port vars and used them
Added Door and Elevator to subsystem and added required ports to RobotMap
Added CloseDoor, OpenDoor, ElevatorDown, ElevatorUp and created new door and elevator in CommandBase
Added button and placing joystick to OI and added port for joystick in RobotMap and created a constructor for OI
resolved all conflicts after merging driveTrain and elevator