Add Python3 victoria unit tests
Add Python3 victoria unit tests

This is an automatically generated patch to ensure unit testing
is in place for all the of the tested runtimes for victoria.

See also the PTI in governance [1].

[1]: https://governance.openstack.org/tc/reference/project-testing-interface.html

Change-Id: I472b6a946f85702f83fecba0a25151a781f4dd7d

openstack/python-searchlightclient,openstack/python-searchlightclient