Death Assets

I imported some assets to the game related to death. You can find the props in "Modded" section in game master. It includes:

- Body Bag ( https://skfb.ly/6WNFw )
- Skeleton ( https://skfb.ly/ouKQG )
- Skull ( https://skfb.ly/oHFAE )

#1.0.1
- Added LODs to all assets. (Optimization)
- Adjusted the texture color of body bags.

#1.0.2
- Added yellow body bag.
- Changed game master previews.