* 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. --------- Co-authored-by: Phil Mitchell <phil.a.mitchell@gmail.com>