Bug 1:
If the original C string contained chars > 127 they would be stored
as huge u32 numbers due to the underflow as char is signed.
It still might end-up with invalid UTF32 characters, but now the caller
can control it.
Bug 2:
The inline storage was not properly initialized when U32String was
initalized from shorter non-UTF32 strings.
* WINTERMUTE: Add detection for "The Driller Incident"
"The Driller Incident" is a small freeware game for Wintermute,
avaliable in English and Russian: http://questzone.ru/enzi/files/1645
* WINTERMUTE: Add detection table for "One Helluva Day" demo
"One Helluva Day" is a point-and-click adventure demo in English / Czech
/ Russian.
Free download:
https://store.steampowered.com/app/603680/One_helluva_day/
* WINTERMUTE: Support CHARSET property for TT fonts
"// we don't need this anymore" was a mistake =)
Surely, most Wintermute games are either designed for 1252 language
(DE_DEU, EN_ANY, ES_ESP, FR_FRA, IT_ITA, PT_BRA), or don't use TrueType
fonts (5ma, deadcity, grotter1, grotter2, thekite, tib), or use
CHARSET=1 with UTF strings (dirtysplit, reversion1, reversion2, twc),
which meen this conversion is not needed for those games.
However, there are some games that explicitly states CHARSET=10 (driller
(RU_RUS), oknytt (RU_RUS), onehelluvaday (UNK_LANG when playing as
Russian)) and there are some games with CHARSET=1 with non-1252 in mind
(bookofgron (RU_RUS excepts 1251), carolreed4 (RU_RUS excepts 1251),
kulivocko (CZ_CZE excepts 1250)).
This fixes text in some games: bookofgron, carolreed4, driller, kulivocko,
oknytt, onehelluvaday.
* WINTERMUTE: Break savegame compatibility
sizeof(BaseFontTT) was changed, so let's break savegame compatibility
* COMMON: Add conversion tables for win1253 and win1257
* COMMON: Add string conversion from U32String back to Common::String
convertUtf32ToUtf8 code is based on Wintermute::ConvertUTF32toUTF8
convertFromU32String use convertUtf32ToUtf8 for UTF8 or lookup through
conversion table for single-byte encodings
* WINTERMUTE: Use Common::convert functions for non-UTF charsets
* WINTERMUTE: Fix whitespaces at detection tables
* WINTERMUTE: Add TODO comments
