[FRAPI] Port to 1.21.11

[sylv256]

Description

This Pull Request ports the Fabric Rendering API, Fabric Renderer Indigo, and Fabric Model Loading API to 1.21.11.

Changes

• QuadView, MutableQuadView, and QuadEmitter now store atlas data as an enum QuadAtlas.
• Due to the block/item atlas split, items rendered using modded quads may use either the block atlas or the item atlas, but each item layer is limited to using one atlas. This is no longer the case.
• Indigo now stores a QuadAtlas field in quad headers.
• The toVanilla and fromVanilla methods in QuadView, MutableQuadView, and QuadEmitter have been removed due Mojang using unpacked vertex data in BakedQuad.
• As a side effect, BakedQuad no longer stores FRAPI data such as normals, color, or atlas!
• VANILLA_VERTEX_STRIDE and VANILLA_QUAD_STRIDE in QuadView have been removed.
• ModelBakeSettingsHelper#asQuadTransform now takes a QuadAtlasSpriteGetter in place of a SpriteFinder to ensure that both item and block quad atlases have associated sprite finders.
• The QuadAtlasSpriteGetter functional interface has been added for ModelBakeSettingsHelper#asQuadTransform.
• BlockRenderDispatcherAccessor#getBlockEntityModelsGetter has been removed in favor of ModelManager#specialBlockModelRenderer.
• The fabric-model-loading-api-v1, fabric-renderer-api-v1, and fabric-renderer-indigo modules have been re-enabled.
• Added FabricLayerRenderState#setRenderTypeGetter and ItemRenderTypeGetter to allow implementations of ItemModel to use both the block and item atlases on the same layer.

[sylv256]

LGTM so far

[sylv256]

LGTM