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: I38e1abfaf92b9730d185751309a20ee8256b2026
Story: #2002586
Task: #24341

zuul.d/layout.yaml

@@ -1,10 +1,11 @@
-
 - project:
     templates:
       - tripleo-undercloud-jobs
       - tripleo-multinode-baremetal-minimal
       - tripleo-multinode-container-minimal
       - tripleo-multinode-branchful
+      - publish-openstack-sphinx-docs
+      - release-notes-jobs
     check:
       jobs:
         - tripleo-ci-centos-7-3nodes-multinode:
@@ -46,6 +47,7 @@
         - tripleo-ci-centos-7-standalone:
             files:
               - config/general_config/featureset052.yml
+        - openstack-tox-linters
     gate:
       queue: tripleo
       jobs:
@@ -79,6 +81,7 @@
         - tripleo-ci-centos-7-scenario007-multinode-oooq-container:
             files:
               - config/general_config/featureset030.yml
+        - openstack-tox-linters
     experimental:
       jobs:
         - tripleo-ci-centos-7-scenario006-multinode-oooq: