[NEW CONTENT TYPE REQUEST] Metal

[NintenHero]

What type of file would you like magika to detect?
Metal (.metal)

What software can create/open these files?
RealityKit, SceneKit, SpriteKit, Core Image.

Where can these files be found?
https://github.com/search?q=language%3AMetal&type=repositories

If possible, please provide a specification for this file type.
https://developer.apple.com/documentation/metal

Additional context
https://developer.apple.com/metal/