Add in experimental job to test zuul swift pushing

Create a new job template 'experimental-swift-logs-{name}-pep8'
which is identical to 'gate-{name}-pep8' except it contains no
publishers and instead uses zuul_swift_upload_console_log builder to
send the logs to swift.

Change-Id: I19f57227934a5d53e7e2c9fc716f89300f40377e

modules/openstack_project/files/jenkins_job_builder/config/projects.yaml

@@ -171,6 +171,7 @@
       - gate-{name}-puppet-syntax
       - gate-{name}-puppet-apply
       - gate-{name}-pep8
+      - experimental-swift-logs-{name}-pep8
 
 - project:
     name: gitdm

modules/openstack_project/files/jenkins_job_builder/config/python-jobs.yaml

@@ -36,6 +36,18 @@
 
     node: '{node}'
 
+- job-template:
+    name: 'experimental-swift-logs-{name}-pep8'
+
+    builders:
+      - revoke-sudo
+      - gerrit-git-prep
+      - pep8:
+          github-org: '{github-org}'
+          project: '{name}'
+      - zuul_swift_upload_console_log
+
+    node: '{node}'
 
 - job-template:
     name: 'gate-{name}-pylint'

modules/openstack_project/files/zuul/layout.yaml

@@ -2534,6 +2534,7 @@ projects:
       - ci-docs
     experimental:
       - gate-config-puppet-apply-centos6
+      - experimental-swift-logs-config-pep8
 
   - name: openstack-infra/devstack-gate
     template: