Primordial Soups

Added crafting functionality for iron soup: A Primordial Crock will craft 2 buckets of iron soup by consuming 2 buckets of stock, 1 raw iron, 1 beetroot, 1 gravel, and 1 gunpowder. Use buckets by hand or use pipes to insert and extract fluids from the Crock and the Stock Deposit. The Crock GUI is a little broken right now and does not show the fluids, but honestly you shouldn't need it. The stock deposit fills up with stock on it's own so you can just keep extracting from it forever, but do not try to pick it up, because breaking it does not drop its item. Also adds the ability to hold multiple empty buckets when taking fluid from the Crock and Stock Deposit. This is how it normally works when you use buckets with things, so now it is consistent.

Note for interacting with the Crock with pipes: The front face with the spout is the only face that you can extract soup from, all other faces will interact with the stock input tank. When using an empty bucket on the Crock, it will try to extract from the output tank first no matter the side you click on, and if that is empty it will extract from the input tank.

You should be able to use other mods' fluid container items on these blocks, but I have not tested any. Please open an issue on the github if something doesn't work and you think it should.