removed the retract command

this will be replaced by a sequence in the throwball command based on
time and possibly a limit switch to signify the bottom of the throwing
arm position
removed the teleop winch control

this will be replaced by a direct joystick controlled winch method
somewhere
added comments for the roller in and roller out
added comments, added direct stop method call
deleted thrower override command

may include this back in at some point, but not needed for testing
RobotBuilder made some changes to these files.
Updated RobotBuilder with new wiring setup.
added intake arm controller to handle single motor
added methods to handle single intake arm motor
added comments and example code for drive train
added throwerArmFullyRetractedLimitSwitch