This implements the wxWidgets fix for KiCad. We can't wait for distros
to update their wx libs so until then, we'll roll our own.
Nicely, this also implements the MacOS setting that was an ifdef
previously
Fixes https://gitlab.com/kicad/code/kicad/-/issues/19506
Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
In some situations then parent window couldn't be available. Eg, when
eeschema is executed as standalone on macOS and trying to show
the global design block table dialog before the main frame exists.
So replace the assert with return and check the windows pointers bellow.
This means that it doesn't start consuming hotkeys for
IME composition in the main canvas on Linux.
Text boxes in dialogs and the property manager, for example,
still receive IME composition.
Relates-To: https://gitlab.com/kicad/code/kicad/-/issues/9882
