[FEATURE] An admin/tutor can delete a course

**Is your feature request related to a problem? Please describe.**
Add a view and model for admins/tutors to delete a course

**Describe the solution you'd like**

**Describe alternatives you've considered**
Please add if any.

**Additional context**
Add any other context or screenshots about the feature request here.

### All Submissions:

* [ ] Have you followed the guidelines in our Contributing document?
* [ ] Have you checked to ensure there aren't other open [Pull Requests](../../../pulls) for the same update/change?

### New Feature Submissions:

1. [ ] Does your submission pass tests?
2. [ ] Have you lint your code locally prior to submission?

### Changes to Core Features:

* [ ] Have you added an explanation of what your changes do and why you'd like us to include them?
* [ ] Have you written new tests for your core changes, as applicable?
* [ ] Have you successfully ran tests with your changes locally?