Icy Monkey bugfix 1

Fixes:

-Removing your last item doesn't crash the game

-Duplication Glitch is gonb

-Restarting the game removes any held item

-Day/Night is reset after game reset

-Yetis spawn less

-Yetis and goats have less HP

-Campfires restore HP over time

-Fires have lower durability, and can be moved easier