Adds storage for items, fluids, and energy, craft and use them!

This mod adds 3 new blocks to Minecraft. First, there is the item vault (inspired by the Create mod). It stores lots of items and can't be accessed by right-clicking. Next, there is the fluid tank. It stores... fluid. Finally, there is the energy cell. It stores RF/FE energy. These blocks are useful for mods that don't have any fluid or energy storage options (except the item vault, it was just a good idea).