Add a convenience script to run the tests
Add a convenience script to run the tests

It also accepts extra arguments, e.g.:

./run-tests -k 'test_index_view_without_approved_events'

Running the tests with a custom argument will turn off coverage
reporting.
codeeu/coding-events,codeeu/coding-events,codeeu/coding-events,codeeu/coding-events,codeeu/coding-events