[Feature Request] Noise Procedural Texture

I had this idea today. What if in the Asset Browser context menu we have a way to add a noise texture.

Specifically a Noise Procedural Texture: https://doc.babylonjs.com/typedoc/classes/BABYLON.NoiseProceduralTexture

If we can do that, we can assign this noise texture to the Babylon Material Library materials and we don't need to include any external textures.

This will give a lot of flexibility to users so they can tweak the parameters as they want.

This will help a lot with #514