Update 2 - Fixed entity lag, buffed enemies, and new dungeon textures

Hello folks, this update has a some fixes, changes, and updates for MacOS users. 

Fixes:

- Fixes entity lag which caused some machines to run the game poorly. 

MacOS Update:

- MacOS is not support at this time due to exporting issues that I can not fix at this time. Sorry folks.

Changes:

- Enemies have better defenses and health hopeful promoting different combat tactics.

- Health potion heal rate has been nerfed

- Potion can now be bought at the shop

- Shops can be refreshed

- Bosses have increased health and defenses

- Levels now come in three different colors so dungeon crawling feels better.

- Lower you go higher loot and strong enemies should appear more frequently,

That's all folks. Happy raiding.