tterrag is a meany face and yelled at me for using class.getSimpleName(). So here's an API-friendly re-work of the registration system. This allows all our Items/Blocks to be obtained via the API. Just add a new enum.
Created reagents to be used in array crafting and added the array recipes for the water, lava, void, green grove, fast miner, elemental affinity, sight and air sigils.
Fixed the textures for the Sight sigil and Fast Miner sigil.