Course enrollment endpoints

Method	Endpoint	Description
POST	/v1/course-enrollments	Create a course enrollment
GET	/v1/course-enrollments/:id	Fetch a single course enrollment
PATCH	/v1/course-enrollments/:id	Partially updates a course enrollment
DELETE	/v1/course-enrollments/:id	Permanently delete a course enrollment
GET	/v1/course-enrollments	Fetch a list of course enrollments