Optional Baubles support, some Void Tear changes.

- Added the Baubles API. Baubles is a soft dep, so if you don’t have
the Baubles mod installed it should still work fine.
- Fortune Coin is a bauble. I’ll add more as I think of them.
- Fixed some derpy Void Tear code.
Automagic. The only kind of magic.

- The Void Tear now automagically collects it’s item from your
inventory on shift-click. It will always leave up to a stack in your
inventory.
- Fixed Baubles.