Feature Request: Import/Export option for joystick configuration; simpler enable options

[charles-neal-asw]

Would like the capability to "export" a USB hand controller configuration (currently called a Joystick within MP) to a single file that could be more easily distributed to other users and imported into their MP install with a single click (within the Joystick configuration window).

Would also benefit from "Enable Joystick" option existing on main page without needing to launch the configuration window each time (assuming that joystick has already been configured). Alternatively could be an Auto-Enable option if a given joystick device is present and detected by MP upon launch.

[EosBandi]

Use command line options for Mission Planner -joy <true/false> | Enable or disable joystick control at startup (use with -type). -type <plane/copter/rover/sub> | Set the vehicle type. The joystick configuration is stored in the folder Documents/MissionPlanner in josytickaxis.xml and jostickbuttons.xml you can move that files between mp installations.