Crafting Library

This library comes with a demo on its use. The process is simple, loop through a global list of craftable objects, their components and see if you have enough stuff to make them. If you do, add it to your list of craftable objects. If you don't, don't add it. Pretty simple, really. Should probably make it a snippet but I feel like the necessity for global variables and special bit of object definition disallowed it from the snippet category.