Allow admins to view user information on a post, even if the post was made with the anonymous option

[jonassoh]

Estimated effort:
This task will take a good amount of effort because the admin needs to be distinguished from students first (so these capabilities can be assigned) and the admin needs a special view where they can see all anonymous posts with their authors.
Dependencies among tasks:
This task has dependencies on issue #6 and issue #7 because the anonymous posting capability and UI need to be fully working so that the admin can distinguish correctly between authors of anonymous posts and regular posts.
Initial assignments for team members:
This task will be a stretch goal so we will assign this to the whole team to work on under the condition we finish both of our current sprint goals successfully with time left.
Milestones:
This task should be completed if there is time remaining at the end of Sprint 2.
Acceptance criteria:
We will test this feature by making tests on the UI where users make posts anonymous. We will then ask an admin to log in and see if they can still view the authors to these posts accurately instead of default hidden information.