Create support in wgsl for handling Mtl color.

[KDahir247]

Diffuse 2021-06-11

I will add support in the graphic system to handle diffuse color, ambient color, specular color, shininess, Dissolve (alpha channel) and their corresponding textures. The wgsl shader will also work with the color and textures to produce the correct final render that matches the mtl data.

[github-actions]

Stale issue message

[KDahir247]

Going to change the design from the material system.
The material system will parse the shader and will create a mtl file where
user can can the values in the mtl file. The mtl will be processed and will update
the variables in the shader.

[KDahir247]

I will close this, since this isn't the design target anymore.
current mtl file design