Update 0.2.0(Equipment and stats rework)

Hey everyone, big update is here!

-Rework of stats and equipment-

Now the equipment adds percentage of stats based on characters base stats, while status effect affect the base stats directly. It should spice up combat a bit.

Defence now work by lowering the incoming damage by a percentage instead of a flat number.

Healing power now increases the healing output by a percentage.

-Graphics tweak-

Changed the graphics a little bit to match the vibe that i want from the game.

-Misc-

Added donkey, his name is "Ishak".

Added ability to eat mushrooms.

Added physics to some objects.

Changed how collision detection works.