Water test

Testing water for a level, just literally it.

Yeah, that's pretty much it. Even though there is water in the actual demo, it's not as detailed as this new water. Some extra things were added such as:

- Splash water effect when you dive into it
- Water sound effects when you are inside it
- Bubble particles
- Moving sound effects in the water while you're moving inside it
- Deep water now can slow down the player a little