0.5.1

A new release with loads of improvements.

• Everything has been refactored for greater code size maintainability.
• Add a proper documentation separate from the source code.
• Several new font patching features:
  • Allow to replace the font entirely.
  • The font patcher functions will now always receive a canvas.
  • Add a algorithm that takes the base font image and automatically create colored variants from it.
  • Add patch_base_font to disambiguate between patching the base font and patching the colored variants. The default for colored variants is now to recolor them automatically.
  • Add reserve_char function that finds free space for a new character or resize the font image if
    there is no space left.
  • Add import_from_font which can import new characters from externally-defined fonts.
• Add support for displaying flags in the language menu.
• Stop caching pack files to save RAM.