Update wx
Update wx

Use a custom forked branch with important fixes:

- translations loading
- wxDVC performance on macos (see https://github.com/wxWidgets/wxWidgets/pull/2381 and linked)

Fixes #701

PKRoma/poedit,alexhenrie/poedit,vslavik/poedit,alexhenrie/poedit,nawawi/poedit,PKRoma/poedit,alexhenrie/poedit,PKRoma/poedit,PKRoma/poedit,nawawi/poedit,alexhenrie/poedit,nawawi/poedit,vslavik/poedit,vslavik/poedit,PKRoma/poedit,vslavik/poedit,nawawi/poedit,vslavik/poedit,alexhenrie/poedit,nawawi/poedit