* Allow switches on the connected radio to control switches in the simulator via the joystick interface.
* Merge configurable radio joystick interface from banyaszg.
* Add two more 'axis' channels to companion.
* Fix 6POS from USB joystick to simulator.
* Reduce data size.
* Fix build error on B&W radios.
* Add 'Companion' button mode to work with the button logic in the Companion app.
* Build Companion joystick setup layout at runtime.
Change #define names for simulator joystick.
Allow 15 axes and 32 buttons.
Initial support for trim sliders.
* Remove custom joystick button type for companion - use 3 buttons per switch in companion to control simulator switch state.
* Fix joystick constructor calls parameters. Connect some radio joystick trims to simulator widgets.
* Restore 'companion' button type to reduce number of buttons needed. Make trims work via buttons in USB joystick.
* Connect joystick trim buttons to simulator widgets.
* Use companion source names for trims.
* Add encode / decode of usb joystick custom settings to Companion.
* Convert to lvgl layouts.
Update language files.
* Fix generated YAML storage files.
* Fix initialisation error when editing button channel. Cleanup code.
* Fix rebase.
* Fix refresh of joystick channel list view after editing an entry.
Companion joystick config window uses two columns.
* Fix vertical joystick inversion bug.
Change stick axis labels.
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Co-authored-by: Phil Mitchell <phil.a.mitchell@gmail.com>
