Project Arrowhead: The Mist

Bunch of fixes as well as spawn weights and creature stats.

Added two new mobs. A Widower Queen and a Floor Slime.

Floor Slimes dynamically move and grow, consuming other mobs to get bigger. Mostly spawn in swamp biomes. They can be on both land and in the sea. 

Added an infestation system to allow widowers to take over entire forests if given enough time.

Added a system where scorpion flies will land on glass and be attracted to light. Pterobuzzards will fly down to catch them causing glass to break.

Adult Tentacles can put their tentacles through gaps to attack things it can't reach, so be careful around gaps that you can't see out of!