Add support for .usdz files in Model3D

[hannahblair]

If we add support for .usdz files in the Model3D component, users will be able to open their 3d models on the Apple Vision Pro 

Thanks to @yosun for the suggestion!

[abidlabs]

This would be really cool!

[abidlabs]

Was looking into this, but this doesn't seem very feasible given the large USD runtime (~15 MB). The format is just not a very web-friendly format, which is why neither Babylon.js nor Three.js have added support. mrdoob/three.js#14219 (comment)

Let's close this for now as its not actionable, unless you feel its helpful to keep open @hannahblair @dawoodkhan82

[julien-c]

modelviewer.dev (which we use on the hub) does have support, FWIW

[julien-c]

through three.js i think? mrdoob/three.js#14219 (comment)

[abidlabs]

oh that's interesting, it seems like a lite version can run on the web. reopening!

[CedricGuillemet]

I'm adding usdz support in Babylon.js : BabylonJS/Babylon.js#16005