New Stuff

- Added corpse gibbing
- Added extra life UI
- Added some polish to the level finish screen
- Added more enemies to E1M3
- Added more item pickups to E1M3
- Added ability to unpause the game with the esc key

Updates and Changes

- Updated wall run models and textures
- Updated some of the materials in E1M2
- Updated the level design and lighting in E1M3
- Updated Hound AI and animation blending
- Ammo pickups can no longer be picked up if ammo is full

- Increased skybox rotation speed in E1M2
- Increased light produced by plants in E1M3
- Increased screen pixelation
- Adjusted lighting in E1M2

Bug fixes

- Fixed an issue with the extra life UI in E1M3
- Fixed an issue with the damage indicator
- Tweaked some of the tone mapping and postprocessing effects
- Further tweaked the way slopes work