Examination Regulation API

[bastihav]

Description

• Closes Create a new view containing all courses (course catalogue) #659
• Closes As an admin, I want to (de)assign courses to modules #638
• Implements API for examination regulation

Type of change (remove all that don't apply)

• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Manually tested all use cases this could alter

Test Configuration:

• OS: Windows

• Browser: Chrome

• Frontend: (remove all that don't apply)

  • Development build
  • Production build
  • Dockerized production build

• Backend: (remove all that don't apply)

  • deployed development build
  • deployed experimental build

Checklist: (remove all that don't apply)

• I added corresponding unit tests (if API code)
• I have performed a self-review of my own code
• My changes generate no new linting warnings or console warnings
• I have updated the package.json version if this is a new release candidate (remove is it is not)
• I have updated the CHANGELOG.md to include any changes made in this PR (add WIP to the top, if there is none already)
• I have reverted commit 6797332 , ee05f78 and d93a7d8 (for testing against experimental cluster)