A Wizard's Lizard: Soul Thief 0.19.0

Here are the updates this week. There's been a bunch of work that's not in the game yet, including the final Wizard's Lab boss. More to come!

* Sound effects for penguin merchant
* Animations for penguin merchant
* Add Rotten Tail that appears when you have Rat Skull
* Add Rat Skull for winning as Vermin
* Light bulbs in Wizard's Lab now explode on death
* New art for Boss Key
* Art for Wizard's Lab boss (WIP)