* chore(pc): convert simu/simulator/companion to use SDL2
* switch companion builds to SDL2 - OSX is not converted
the linux change is done a bit hacky, it should be done by updating the EdgeTX docker container
* update build system setup scripts
* add compatibility for old and new SDL2 cmake integration
* fix windows installer
* fix simulator audio on windows by using DirectSound vie SDL2
* fix windows audio with SDL2
enable simu for windows builds
* remove workflow changes for linux builds, this needs to be fixed in the build environment
* fix OSX build, thx @pafleraf
* fix windows audio for companion and simulator with SDL2
* select SDL2 branch of the build-docker environment
* Revert "select SDL2 branch of the build-docker environment"
This reverts commit da801609d78e1aed513ad7d9d8ab3ebded2900b9.
* fix tests with SDL2
* chore(github): Node.js 12 based actions deprecated
* chore: Remove more dependency ver warnings
- `jurplel/install-qt-action@v3` finally released
- `actions/cache@v1` is thus no longer needed, so its warning gone also
- leaving on only `maxim-lobanov/setup-xcode` remaining
* fix: Prevent potential wordsplitting of variables
* chore: Remove need for separate cpn 32bit script
* Build script tag/branch/PR auto-detection
* Teach companion about VERSION_TAG
* Update some constant names
* Only one companion build script
* Actually use `VERSION_SUFFIX` in about screen 🤦
* Add space
* Remove line that was only for testing 32bit build
* Remove hyphen between win and bits
* Show codename in Settings -> Version
* cpn: Only show codename on tagged versions
* Update about screen also
* Double quotes around codename on colorlcd
* Update copyright year
* About screen should use VERSION_TAG when set
