WIP Awais786/course info api

@stephensanchez    We have implemented initial api workflow.  Can you please take a look ?

following is api url.
/api/courseabout/v1/course/about/[course-id]
I don't think /courseabout/ is the right name for this, but it's the right idea, we'll want to be able to version this api independently from any other course API. I'm thinking api/course/details/v0 and I'll circle back with other teams to see what other APIs we have coming along. 

But also go with "v0" for now. This is an internal deployment. We'll move to a v1 later on.