Add overview of test status

[svenvg93]

It might happen that tests are not going to completed and stay on another status. A overview of all the statussen and what they mean or can cause a test to stay on that state can help the user solve some problems them self.

case Benchmarking = 'benchmarking';
case Checking = 'checking';
case Completed = 'completed';
case Failed = 'failed';
case Running = 'running';
case Started = 'started';
case Skipped = 'skipped';