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: I85b8f668d6e90806ac76882723b20fd829a79d70
Story: #2002586
Task: #24299

.zuul.yaml

@@ -33,6 +33,14 @@
       tox_envlist: selenium-headless
 
 - project:
+    templates:
+      - openstack-python-jobs
+      - openstack-python35-jobs
+      - publish-openstack-sphinx-docs
+      - periodic-stable-jobs
+      - check-requirements
+      - release-notes-jobs
+      - nodejs4-jobs
     check:
       jobs:
         - horizon-openstack-tox-py27dj110
@@ -40,6 +48,7 @@
         - horizon-openstack-tox-py27dj18
         - horizon-selenium-headless
     gate:
+      queue: horizon
       jobs:
         - horizon-openstack-tox-py27dj110
         - horizon-openstack-tox-py27dj19