Fixed A Bug when crafting a flint flake would take 3 flints

Ported To 1.21.1

Fixed Several Bugs

v1.1.0

Balance Update

1. Stone Mines Faster with Flint
2. Flint Is Unstackable
3. Cooking On Campfire While the Fire is Small Is Faster, 4. From 3 Minutes To 2 Minutes
4. Added Stone Knife as an Early Game Weapon