This patch implements the following changes:
'commit_aio' tests are now called 'scenario' tests
- this is now set as the default test set
'commit_multinode' tests are now called 'api' tests
- network, compute, object_storage tests have been added
'nightly_heat_multinode' tests are now called 'smoke' tests
Change-Id: Ic415eab199f647a3a4029c535aeceb86291da162
Implements: blueprint additional-tempest-checks