Character classification is no longer affected by quirks of standard library implementation
Lookup table for own function was generated with Python thanks to Unicode Database module from its standard library
Explicitly set locale for POSIX targets was reverted to C
https://forum.zdoom.org/viewtopic.php?t=65641&start=18#p1115930
The use type is being used for texture lookup, so changing this alters the texture lookup rules and may cause return of incorrect textures.
This also ensures that context depending upscaling rules get used, because FontChars are separate from regular textures.
* sprite offset definitions, which are IWAD dependent
* Freedoom's decal overrides
* conversation ID definitions for the Strife teasers
* the fallback BigFont now can also be loaded by IWADs which declare themselves as GAME_Heretic or GAME_Hexen.
The Romanian letters with comma below, the second Greek Sigma variant and a few special Cyrillic letters have replacements that should not result in rejection.
The lowercase Sigma letter in Greek has two different forms (σ and ς), which changes depending on its placement in a word, but in uppercase and smallcaps contexts, it only has one look regardless of word positioning. If the character ς is missing, it should fall back to σ.
The episode titles required a workaround because the CQ3 episodes do not contain names in text form: If this is the case, the patch name will be used as a string table identifier to get a matching text for localization.
Some reorganization to avoid code duplication plus making the log screen capable of using the generic font. This also means that the popup for the log in Strife's status bar will be disabled when in generic mode - this popup with its special font would be a bit problematic.
It will now check all layers of a material.
Additionally it will also delete all descriptor sets of Vulkan hardware textures before precaching to make sure that nothing here can accidentally still reference a deleted texture.
* consolidated C_MidPrint and C_MidPrintBold.
* removed some unused code from the console buffer.
* handle console output of centered messages to ensure they get written to the log file and to stdout.
* replaced the non-standard bar strings with simple '-'s. These were making things needlessly complicated when redirecting console output and the new font does not have the characters anyway.
* removed some old code from a time when during console drawing new network events could come and have more text printed. This can not happen anymore with how 2D elements are being handled now so all this code was redundant.
Since this needs to do cursor positioning calculations it's the one spot in the entire engine where UTF-8 would simply be to messy, especially when having to deal with double wide characters.
In the old system it just loaded the font a second time, but with the folder based setup there is no file named CONFONT anymore so it needs to be dealt with explicitly.
The usedcolors array which counts the number of pixels in a given color in a font used bytes as storage, so any color that just happened to have a count that is a multiple of 256 the color was considered not present.
