Cauldron

The cauldron works like the vanilla icon. It can be crafted, placed and filled in the usual way.

But the Mod expands its functionality quite a bit:
 * Any kind of vessel can be filled with water from a cauldron. It holds 3 servings, as usual.
 * Cauldrons naturally spawn in some buildings.
 * Cauldrons are used to undye coloured items.