[Suggestion] Conan package

[Ansoulom]

I think it would be great if this library had a working/official package for the Conan package manager. This would make installing the library very convenient for those of us that use Conan.

There is actually another repo for a Conan package for this library at https://github.com/birsoyo/conan-fx-gltf but unofficial, uses an unofficial package for nlohmann_json as dependency which can cause problems for those that use that library as well and it does not support the standard CMake workflow (yet at least). Moreover, it's not available on the conan-center Bintray repository.

I would be willing to submit a PR for a Conan recipe if you would be willing to maintain it (update version numbers and such) and upload the package to Bintray. Otherwise, I guess I could make a PR to the other repo instead, make my own repo for it or try to get the Bincrafters community to do it.

What would you prefer? I think that maintaining the package together with the actual library would be preferable, if it would be possible.