Hats on Monkeys

[BlackPhoenix]

Monkeys can already wear masks, but there are no sprites for that. We also do not have a ridiculous sprite for monkeys wearing backpacks. Please do this.

I'm pretty sure the bog standard Gas Mask has a sprite, and it is great if I recall right. We definitely need the rest though. With how fast people redid the jumpsuit sprites, I feel like it wouldn't be that hard to sprite up the monkey stuff.