Carbons

Carbon 1.20.1.9-C

• Fix a crash when entering a world on older Forge releases, including 47.3.0, caused by a call to ResourceLocation.withDefaultNamespace that is unavailable in those environments.
• Use the original Minecraft 1.20.1 ResourceLocation constructor for the shadow texture, preserving the Forge 47.0.0 minimum requirement.
• Retain the 0.9-B shader rendering fixes and the existing item instancing, shadows, and optional physical effects.