Custom Cosmetic: Maelstrorca

* Improved eyes visually.
* Finetuned wet shininess and roughness to make it less mirror-like reflective.
* Improved wet normal blending.
* Added tail wagging.
* Cleaned up code a bit.
* Optimized more textures.
* Slightly improved blood overlay by switching from DXT5 to BC7.
* Changed default Maelstrorca to have whiter eyes.