NeoBlock - The new OneBlock

✨ Added

• Schematic System
  • /neoblock scheme save <pos1> <pos2> [<center>] [<name>]: Save structures centered around a point.
  • /neoblock scheme load <pos> [<name>]: Load saved structures into the world.
  • Automatically loads main.nbt over the NeoBlock during world generation.
  • Additional schematics can be configured via config.toml

🛠 Improved

• Default world type is now set by the mod — no need for a separate default world mod.
• Removed all experimental warnings for a cleaner dev and player experience.

🧹 Internal Changes

• Refactored utility and data handling systems:
  • Introduced TierManager for tier data management.
  • Unified utility methods under MinecraftUtil.
  • Integrated WorldData more deeply for persistent storage.