Hei!
I just didn't find any other means to connect with you easily, but actually I just want to help by providing an information bit that at my company we have successfully integrated "ObjMaster" my earlier lightweight obj loading library for c++14 with Hololens. The integration code is not out here in the github as the integration had been done at work so I should not share it, however the small obj library is here:
https://github.com/prenex/ObjMaster
It can read models with more complexities - like having object groups and multiple textured materials - however there is still things to do around the C-like calls that can fail if the format is unsupported. For the future, I also plan to add animation to this library as I am slowly working on it from home. Currently it support all obj files that are exported from blender if you click "export normals" and "triangulize mesh". Other than that, you get textures as bitmaps for diffuse, ambient, specular, bump, the material information and a lot of things. Also the system supports "sliced" encoding of vertex data, that is you do not need to use different uniforms or vertex buffers for normals, uvs, etc, but supported well. Also it tries to use modern c++.
I do not want to seem like I advertise for myself, just that at work we use this efficiently. Let me know if you can integrate it - it is easy to do so as you only need to put the code in as-is and #include ;-)