Tree Hollows

Adds "tree hollows" to trees, which are simple 3 by 3 inventories. Additionally, tree hollows added during world generation will contain loot. Default loot table includes sticks, feathers, mushrooms or eggs with a small chance for different seeds, gold nuggets and raw ores, enchanted equipment, books and emeralds. Tree hollows drop sticks if broken without Silk Touch and can be renamed in Anvil like any vanilla container. You can find them in Natural Blocks (Decorations before 1.19.3) creative tab. Currently adds tree hollows to all 6 vanilla trees.