Issue: GREG-35

Add a barebones nextjs project

See merge request !44

Issue: GREG-35

Add pipeline and coverage badges to README

See merge request !42

Identity model changes

See merge request !41

Use CloudEvents format for message publishing

See merge request !40

Test more things

See merge request !39

The custom repr and str methods of various models now have tests.
Duplicate fixtures have been moved to conftest.py to reduce clutter.

All fixtures have been modified to create database objects, and then
fetching them back afterwards so that we work on the data saved in the
database, instead of the data as it is on input.

The health endpoint now has a test

Bump dependencies

See merge request !37

Tests/coveragereport

See merge request !34

Make changes in GREG-28 work with the changes from GREG-26.

See merge request !36

GREG-28: Adding a filter for active roles

See merge request !32

Greg 26 model changes

See merge request !35

Issue: GREG-26

Issue: GREG-26

Remove many-to-many relationships from the Person model,
keeping the 'through' models which continue to work as before.

Issue: GREG-26

Type checking is now also done for management commands and the usual
missing imports errors are ignored.

Omits the test folder since checking coverage of the test functions
themselves makes little sense.

Issue: GREG-26