[feature request] Draco compression support

[JernejL]

As in description - it would be very desirable to have draco decompression support in pasgltf, as it is one of most common and effective extensions for gltf models.

https://www.khronos.org/assets/uploads/developers/library/2018-gdc-webgl-and-gltf/glTF-Draco-GDC_Mar18.pdf

https://google.github.io/draco/