Need Admin app

There are certain functionality that administrators need. This issue is to create the app for administrators.

This issue addresses User Story Administrator [Jorge](https://github.com/CulverLab/sparcd-requirements/wiki/User-Stories#administrator--jorge), and [Jorge Jr.](https://github.com/CulverLab/sparcd-requirements/wiki/User-Stories#administrator--jorge-jr)

Read the linked Administrator Jorge and Jorge Jr. user stories first. The issue does not name an app entry point, files, tests, or specific administrator functionality, so use those stories to establish the intended scope before locating relevant code. Done would mean the administrator app and the functionality in those stories exist, but the issue does not define acceptance criteria.

Written by the indexing model from the issue text.