CCX Coach - Main

[diana-villalvazo-wgu]

Create following endpoints

• http://local.openedx.io:8000/api/ccx_coach/v2/courses/{courseId}/metadata
  GET
  Attributes:
  Tabs - Array, same type as instructor tabs
  ccx coach tabs:
  - Enrollment
  - Schedule
  - Student Grades
  - Grading Policy

• http://local.openedx.io:8000/api/ccx_coach/v2/courses/{courseId}/create_ccx
  POST
  Expected Payload:

{ 
name: string
}

To create a new ccx course reuse logic from following endpoint
http://local.openedx.io:8000/courses/{courseId}/create_ccx
Notes: right now a csrfmiddlewaretoken is sent, can we just send the name from frontend? 
And right now it is resolved as 302 we should change it