Add rendering module

[PepperCode1]

Highlights:

• Model submodule:
  • Injected interface into BakedModelManager for getting BakedModels from Identifiers
  • Transitive access wideners for registering item model predicates
• Rendering registration submodule:
  • Dynamic item rendering
  • Custom armor rendering
  • Allow mapping custom EntityModelLayers to TexturedModelDatas
  • Transitive access wideners for registering block entity and entity renderer factories
  • Move block render layer map from block extensions submodule to rendering registration submodule
  • Allow ArmorMaterial#getName to return a namespaced texture location

To do:

• [ ] Add block and item color provider registration
• [ ] Allow registering entity feature renderers
• [ ] Improve javadoc
• [ ] Improve testmods