[RFC] Automatically set GeoID on process startup

[João Diogo Ferreira]

... basically like we already do for locale.

Hello all. So for my first contribution to Wine I've been wanting to
tackle this issue, reported and suggested in bug #46196. I'd like to hear
everyone's opinions on it and also have one question answered.

The bug: https://bugs.winehq.org/show_bug.cgi?id=46196

The mechanism is fairly simple, just asking Wine for the country code of the
current locale and calling the appopriate Win32 functions to set that.

My main question is how to allow a user to disable this mechanism easily
(say, with a registry key or with winecfg).
Plenty of countries are simply not represented by either Linux or Wine locales,
chiefly former colonies in Africa and Asia with European official languages.
Think Angola, Mozambique, Macao, Morocco, etc.

Or if anyone has any better suggestion, this is the thread to send them in.

-- João Ferreira