import zuul job settings from project-config

This is a mechanically generated patch to complete step 1 of moving
the zuul job settings out of project-config and into each project
repository.

Because there will be a separate patch on each branch, the branch
specifiers for branch-specific jobs have been removed.

Because this patch is generated by a script, there may be some
cosmetic changes to the layout of the YAML file(s) as the contents are
normalized.

See the python3-first goal document for details:
https://governance.openstack.org/tc/goals/stein/python3-first.html

Change-Id: Iad078d6502c1f72acf761f093ea8141d604bd2f3
Story: #2002586
Task: #24319

zuul.d/project.yaml

@@ -15,6 +15,9 @@
 - project:
     templates:
       - openstack-ansible-role-jobs
+      - check-requirements
+      - publish-openstack-sphinx-docs
+      - release-notes-jobs
     check:
       jobs:
         # TODO(jrosser) Revert this once centos7 passes
@@ -42,4 +45,4 @@
             voting: false
         # TODO(jrosser) Revert this once bionic passes
         - openstack-ansible-functional-ubuntu-bionic:
-            voting: false
+            voting: false