Cape Provider

This is a "one-shot" legacy version for 1.21.10 based on 4.3.1

Contains the following changes:

4.3.0

• Implement local caching of cape textures - if the provider supports it #205
  • Currently only supported by MinecraftCapes
  • Textures are saved inside .mods/cape-provider/texture-cache in the game directory
  • Unused textures are cleaned up automatically

4.2.1

• Fix MinecraftCapes Provider no longer working due to breaking API changes #206
• Removed Wynntils #204