Get rid of acceleration in MST_Motors and add Dynamic Reconfigure

[Mr-Anderson]

The acceleration functions that were added at competition to try and fix the drive make it very annoying to drive. I would also like to set up dynamic reconfigure gui with it. The acceleration function parameters should be added to the gui with and option to turn it off completely. In addition their should be options for the timeouts on the watchdog and refreshing of the motor rates.

[jpeg]

Keep this in mind for new motor drivers.