read function for Wavefront Obj format

[9prady9]

No description provided.

[9prady9]

@acrlakshman Does local changes include reading OBJs too ?

[acrlakshman]

Yes they do. But I am rewriting both of them because the tinyobj library I was depending on has changed since I started. Now at this point I wanted to check with you the following 2 things

1. Should be distribute work between eachother for read and write part just like we did with STL. Since I am doing a fresh start again?
2. Should be continue to depend on tinyobj, since that is well established at this point? I am inclined towards depending on that.

[9prady9]

If you have it written already, there is no point me taking over it from you. I think it might be faster if you get it finished. I can start reading about glTF.

About tinyobj reader, is it that hard to write our own obj reader ? I personally don't want to have any dependency unless absolutely necessary. That way, meshio headers are not dependent on anything else. Helps us learn things on the way too. Also, I wanted to discuss something with you. Perhaps, direct message me.

[acrlakshman]

Please find read_write_OBJ branch here: https://github.com/acrlakshman/MeshIO/tree/read_write_OBJ