Add linter/docs jobs

Added to check only so that we can merge this and verify that they
work before adding to gate (this is a config-project).

Change-Id: I5f62a4e7262148f9fb8030f46433bfda11fccce5

zuul-tests.d/jobs.yaml

@@ -0,0 +1,11 @@
+- job:
+    name: zuul-base-jobs-tox-linters
+    parent: tox-linters
+    description: Lint Ansible playbooks and roles
+    required-projects:
+      - zuul/zuul-base-jobs
+      - zuul/zuul-jobs
+      - zuul/zuul
+    vars:
+      tox_environment:
+        ANSIBLE_ROLES_PATH: ~/src/opendev.org/zuul/zuul-base-jobs/roles:~/src/opendev.org/zuul/zuul-jobs/roles

zuul-tests.d/project.yaml

@@ -0,0 +1,11 @@
+- project:
+    check:
+      jobs:
+        - zuul-tox-docs
+        - zuul-base-jobs-tox-linters
+    gate:
+      jobs:
+        - noop
+    promote:
+      jobs:
+        - zuul-promote-docs