* Alternative water shader proposition
* Unlit water shader and add shadow
- Unlit water shader
- Add shadow as done in Toon shader
- Add vertex displacement like done in dickmendra shader
- Change the showcase water plane to intersect with the rock close to it to see foam
* Shader clean up
* Water shader improvements
- Water effect distance cut off
- Expose light probe contribution
- Control surface shadow intensity
* Small tweaks to showcase scene
* Water shader fixes
* Showcase water
* Small tweaks
Co-authored-by: Ciro Continisio <ciro@unity3d.com>