0.16 - Horses & Improvements

- NEW Horse, find them randomly spawning around the item, press "F" on the horse to ride.
- NEW Horses will despawn after 3 hours
- NEW Walking into water with a horse will dismount you and kill the horse... (please don't try it)
- NEW Main Menu background screen
- NEW Boar Sound Effects
- NEW Bear Sound Effects

- FIX FPS Hitches when looking at large amounts of foliage
- FIX Totem Hitbox through walls
- FIX Some foliage having extremely unforgiving hitboxes prevently players from building