Add TripleO job

The placement service is one of the core components generally used in
any OpenStack deployment. This change introduces a tripleo job to
ensure that any change in puppet-placement doesn't break TripleO.
Because tempest doesn't provide specific test cases for placement, nova
tests are used to check functionality of a TripleO deployment.

Change-Id: I055b1614d796a1c7f686a0976700e1fee9c61ca3

.zuul.yaml

@@ -5,3 +5,22 @@
       - puppet-openstack-integration-jobs-all
       - puppet-openstack-litmus-jobs
       - release-notes-jobs-python3
+    check:
+      jobs:
+        - puppet-placement-tripleo-standalone
+    gate:
+      jobs:
+        - puppet-placement-tripleo-standalone
+
+- job:
+    name: puppet-placement-tripleo-standalone
+    parent: tripleo-puppet-ci-centos-8-standalone
+    description: |
+      TripleO standalone Job running Placement specific Tempest tests.
+    vars:
+      build_container_images: true
+      featureset_override:
+        run_tempest: false
+        tempest_test_whitelist:
+          - 'tempest.scenario.test_server_basic_ops'
+        use_os_tempest: true