Adds Area Drill, Tree Feller, Liquid Sponge, Vein Miner and Excevator

- Area Drill (Pickaxe): Mines a large 3D area of stone and ore in a single, smooth animation.
- Tree Feller (Axe): Fells an entire tree, including leaves, from the bottom up.
- Excavator (Shovel): Instantly digs out large areas of dirt, sand, and gravel.
- Vein Miner: Mines an entire vein of ore with a single block break.
- Liquid Sponge (Bucket): Removes large volumes of water or lava in a 3D area on right-click.
/customdrill [args...] - Creates a custom tool.
/customdrill help [tool] - Shows detailed instructions for a specific tool or a general overview.
/customdrill reload - Reloads the config.yml file without needing a server restart.