The Philosopher's Stone - Expensive Endgame Recipes (Diamond, Voidheart, Gold!)

Added the Philosopher's Stone! It's a cool, creepy, animated, and interactable pinnacle alchemy crafting tool! Stockpile void essence, hearts, and precious gems to craft it at the alchemy table, and then place it in your world. Interacting with it will dispense an infinite amount of Powder of Projection, which can be used in various iconic alchemical recipes- namely, transmuting iron into silver and gold! The philosopher's stone also unlocks some incredibly powerful instant healing potions balanced for mods that power creep the game a bit. However, these new potions don't stack, and the process of harvesting the necessary Powder of Projection should add some friction to their use. 

I may add more weird recipes using the Powder of Projection in the future.

When Update 4 drops I'll re-adjust this mod to require higher tiers on the crafting table and change the potion recipes slightly.