Implement typing with extended character support for more languages

[Branikolog]

Preliminary checks

• I've checked that there aren't other open issues on the same topic.

Describe the problem requiring a solution

Only English is used while creating player's name.

Describe the possible solution

Since fheroes2 supports multiple languages, it would be nice, if players could type their names using the language supported by the engine.

Additional info

No response

[zenseii]

Just adding that this will probably only be possible once we add UTF-8 encoding support. There should be an issue for that.

[undef21]

I think sphinx's riddle dialog has the same issue. Some localized maps can have non-ASCII answers.
AFAIK windows versions of OG have support of national encodings but dos versions (e.g. French) haven't. In dos versions the game filtered user input and allowed only ASCII chars.

[zenseii]

Basically this is relevant for any place where the user is asked to type, so even writing save game names.

I'll change the issue title to reflect this.

[667bdrm]

On this map sphinx dialog allow enter only digits. English or Russian letters typing does not change the field. Looks like this map file use Windows 1251 charset for text.

Ubuntu 20.04.5 LTS

Горы Альтерак.zip