Dynamic Trees - Au Naturel Edit

Corrected versioning.

Latest total changes (may also include changes from last version):

Thread-Safety Improvements (C2ME Compatibility)

• Fixed ClassCastException crash during parallel chunk generation with C2ME/Chunky
• LevelPoissonDiscProvider: Replaced HashMap with ConcurrentHashMap and atomic computeIfAbsent()
• PoissonDiscChunkSet: Added volatile modifiers for cross-thread visibility
• JoCodeRegistry: Converted to ConcurrentHashMap for thread-safe code registration
• BiomeDatabases: Converted to ConcurrentHashMap with thread-safe Set

Worldgen Performance

• BiomeDatabase: Eliminated double map lookup (containsKey + get → single get)
• DynamicTreeFeature: Cached biome lookups, replaced forEach lambdas with traditional loops
• CaveRootedTreeFeature: Cached biome lookups, replaced forEach with for loop
• LevelPoissonDiscProvider: Reuse TreeMap across iterations instead of per-iteration allocation
• JoCode: Use MutableBlockPos in generateFork(), cache Direction.values(), use int overloads in smother()

General Performance

• DynamicLeavesBlock: Cache Direction.values(), use MutableBlockPos in fallOn(), early exit optimization in getExactSpecies()

Client-Side Rendering

• FallingTreeEntityModelTrackerCache: Replaced stream-based cleanup with efficient removeIf()
• FallingTreeEntityModel: Added RGB color caching to reduce redundant bit operations