Overgeared Forge Stone Tools with Anvils

I found it very silly that even after creating fully functional anvils in Overgeared that if you ever needed a stone tool you'd still need to grab flint, scrape off a rock and then knap them together, so this datapack rectifies that by adding the stone tool recipes to the anvils for Overgeared, so you can skip a few steps next time you need a stone tool crafted. Partially for balance and partially because i'm not sure it matters that much by the time you get an anvil, they aren't affected by crafting quality. 

For obvious reasons, this has Overgeared as a dependancy.