FirefighterRobot renamed to DifferentialDriveRobot in preparation for splitting the functions up into different classes.
Renamed versions of FirefighterRobot.
Delete renamed files.
Fire functions have been successfully broken out from DifferentialDriveRobot.
Sonar functions pulled out of DifferentialDriveRobot.
Break out DifferentialDriveRobot into its own library.
DifferentialDrive broken out into a separate library. However, it still has wall following behavior in there as well.