Progress #2

- Added health bar

- Added temporary character model for testing

- Added Inventory

- Added basic combat system

- Added a zombie

- Added temporary zombie model for testing

- Added UI rendering

- Switched to Jolt physics

- Changed the player movement (still a bit broken but I believe switching to a kinematic body will fix this)

- Changed a lot of code from Progress #1

The switch to Jolt physics did take a while and I still have more to learn, but I think it was the best decision it's way better than the old physics engine the game was using. I'm currently working on the character controller and hopefully by the next progress report will be finished. That's about it, see ya