Add a Way to Unstain Glass and Undye Wool

A way to unstain glass and undye wool would make the building experience slightly better for many people. If you've accidentally crafted a lot of stained glass or wool and don't like the colors you could clean them, causing them to become the basic glass or wool block. By placing 8 of the glass or wool into the crafting grid with a water bucket or some other new item in the middle, you can "clean" the blocks. Using the cauldron could work, but with the massive amounts of wool or glass you would be cleaning it would take forever to constantly refill the cauldron.