When running a python script is run from a console, outside Kicad, a wxWidgets
alert was always show (even in release mode)
This is due to calling wxStandardPaths::Get() with no wxApp open( i.e. wxTheApp == O)
The fix uses a dummy wxApp in this case.
The first phase is for the environment before the OS
apps are created, and the second phase is for after
the OS app is created but before all of our processing.
Fixes https://gitlab.com/kicad/code/kicad/issues/7992