Add gyro recalibrates button in disabled

[mllewellyn]

The driver and/or operator should have a button that recalibrates the gyro. They would press this before auton when the robot is still to calibrate the gyro. Calling the init() method on the gyro in the drive train class will recalibrate it. There should also be an indicator on the smartdashboard that shows if the gyro has been calibrated since robot power on as well as an indicator that shows if the gyro is currently recalibrating.

Also once this is done remove the gyro calibration from auton.

[mllewellyn]

Changed label from enhancement to bug because without this auton screws up