glTF – loading a skeleton
We need to implement one more loading function—the LoadSkeleton function. This is a convenience function that loads a skeleton without having to call three separate functions.
Implement the LoadSkeleton function in GLTFLoader.cpp. Don't forget to add the function declaration to GLTFLoader.h. The function returns a new skeleton by calling the existing LoadPose, LoadBindPose, and LoadJointNames functions:
Skeleton LoadSkeleton(cgltf_data* data) {
    return Skeleton(
        LoadRestPose(data),
        LoadBindPose(data),
        LoadJointNames(data)
    );
}
The LoadSkeleton function is just a helper function that allows you to initialize a skeleton with a single function call. In the next section, you will implement a Mesh class, which will let you display animated meshes...
