[WIN32SS][NTGDI] Support raster fonts (*.fnt and *.fon) (#1739)

[WIN32SS][NTGDI] Support raster fonts (*.fnt and *.fon) (#1739)

Add raster font (*.fnt and *.fon files) support. CORE-16165

- Add IntGetCharSet() function to get the charset by index and/or the number of charsets.
- Make IntGdiLoadFontsFromMemory() a non-recursive function.
- IntGetOutlineTextMetrics() accepts raster fonts.
- Improve CharMap handling (especially TT_PLATFORM_APPLE_UNICODE).
- Write the raster font file info to the registry.
- Don't request font size for raster fonts in IntRequestFontSize() function.