Russian translation shows messages [Hit any key to exit] and [More] in wrong code page

[DavidKinder]

Enabling the Russian translation involves setting the default code page and the default language to Russian. With this enabled, at least two things go wrong:

1. The [Hit any key to exit] message, printed if the game prints text between the last input and exiting, is shown as if the message were in ISO-Latin-1.
2. The [More] prompt is also shown as if it were in ISO-Latin-1.

There may be other, related issues: uses of CResString need to be checked.