The old method of executing tempest via run_tempest.sh from
the root of the git clone has been deprecated and will soon
be removed.
This patch does the following:
- Moves the tempest execution into the role.
- Provides the ability to set the tests to be executed
as a list. The list becomes a whitelist which is given
to tempest to run. The whitelist can be a specific list
of tests, or line seperated regex.
- Uses the modern execution method, but leaves the old
method in place to allow other roles to transition.
- Exports the subunit results as raw, xml and html results.
Implements: blueprint testing-direct-tempest
Change-Id: I40f816ead338f90f9537a8494822ff10b06021cb