This adds falcon-based unit tests for
GET '/api/v1.0/test/{release}' endpoint.
This also renames the Test controllers into more specific names
in order to disambiguate the controller names.
Finally, the condition for returning whether a test passed
was changed to be `test_status.result[0].status == 'PASSED'`
as the default cause of 'FAILED' also passes the previous condition:
`test_status.result[0].status` which is wrong.
Change-Id: Ib84bc0b3baf5271cd7417000bbfed56b18840eed