Fill Command

[rmilooo]

feat: Add /fill command for block placement

• Implemented the /fill command with the following syntax:
  /fill

• Features:

  • Supports absolute and relative coordinates (~).
  • Validates block IDs using BlockStringToType().
  • Automatically sorts coordinates to ensure correct area filling.
  • Loads relevant chunks before block placement.
  • Sends success or failure messages to the player.

• Error Handling:

  • Invalid coordinate parsing prompts a failure message.
  • Block type validation ensures only existing blocks are used.
  • Logs player actions for server monitoring.