Initial commit: Terrafier v0.1.0

- Core world model (World, Dimension, Tile, Terrain, Platform)
- NBT reader/writer with full tag support
- Anvil region (.mca) format reader with chunk parsing
- Block palette compression and export
- Biome database with Minecraft 1.21 biomes
- CLI commands: new, import, export, info, render
- GUI application with egui (viewport, tools, undo/redo)
- Noise-based heightmap generation and editing operations

License: GPL-3.0-or-later

crates/nbt/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "terrafier-nbt"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+description = "Zero-copy NBT (Named Binary Tag) parser and writer for Minecraft data"
+
+[dependencies]
+serde = { workspace = true, optional = true }
+thiserror.workspace = true
+flate2 = { version = "1", default-features = false, features = ["rust_backend"] }