new: Batch GUI rendering
fix: Ensure entities with outlines or nametags are always visible
new: Cull the inside faces of leaf blocks when using fast graphics
fix: Track animated sprites in billboard particle rendering
fix: Use 3D biome color blending 
Fix: Correct a half block offset in smooth biome blending.
Fix: Oversized block models no longer produce negative interpolation ratios in SmoothBiomeColorBlender.
Change: Remove the fast path for aligned vertices in SmoothBiomeColorBlender.
Fix: Prevent out-of-bounds array accesses in BiomeColorCache.
Change: Use more levels of caching in BiomeColorCache and split biome blending across each axis.
Change: Tidy up array set-up in BiomeColorCache.
Refactor: Use more descriptive names in BiomeColorCache.