wxWidgets seems to cause GTK to spam messages to the terminal,
and we have no control over that. So lets hide the messages
so no one complains about them. If people really want to see
them, they can add the KICAD_SHOW_GTK_MESSAGES build flag to CMake
and they can watch them scroll past.
* Implement ReparentQuasiModal for OSX natively
* Implement ForceFocus of OSX natively
This change means we no longer rely on the kicad-specific functions in our osx wx fork.
Marek Roszko
Jon Evans
Ian McInerney