Add a Fuel extension to support Serializers Conversion

This commit adds a project that contains fuel extension that actually
allows a pre-Mitaka cluster to be managed with LCM features of Mitaka
Fuel by reusing new deployment engine along with old deployment info
serializers

Needed-By: I2f37e90968587ab926951e5763479b88cecbcc55

Change-Id: I6e125f4cfc5779d148f70fbf8a2a807646c4369f

gerrit/acls/openstack/fuel-nailgun-extension-converted-serializers.config

@@ -0,0 +1,20 @@
+[access "refs/for/refs/*"]
+pushMerge = group fuel-convserializers-core
+
+[access "refs/heads/*"]
+abandon = group fuel-abandon-bot
+abandon = group fuel-convserializers-core
+create = group fuel-release
+label-Code-Review = -2..+2 group fuel-convserializers-core
+label-Verified = -1..+1 group fuel-ci
+label-Workflow = -1..+1 group fuel-convserializers-core
+
+[access "refs/tags/*"]
+pushSignedTag = group fuel-release
+
+[receive]
+requireChangeId = true
+requireContributorAgreement = true
+
+[submit]
+mergeContent = true

gerrit/projects.yaml

@@ -2695,6 +2695,14 @@
   options:
     - delay-release
   acl-config: /home/gerrit2/acls/openstack/fuel-octane.config
+- project: openstack/fuel-nailgun-extension-converted-serializers
+  upstream: https://github.com/aglarendil/fuel-nailgun-extension-converted-serializers.git
+  groups:
+    - fuel
+  description: Serializers Conversion extension for Fuel Nailgun
+  docimpact-group: fuel
+  options:
+    - delay-release
 - project: openstack/fuel-nailgun-extension-iac
   upstream: https://github.com/dukov/fuel-external-git.git
   groups:

jenkins/jobs/projects.yaml

@@ -4310,6 +4310,13 @@
     jobs:
       - python-db-jobs
 
+- project:
+    name: fuel-nailgun-extension-converted-serializers
+    tarball-site: tarballs.openstack.org
+
+    jobs:
+      - python-db-jobs
+
 - project:
     name: fuel-nailgun-extension-iac
     tarball-site: tarballs.openstack.org

zuul/layout.yaml

@@ -8628,6 +8628,16 @@ projects:
       - gate-fuel-nailgun-extension-cluster-upgrade-pep8-ubuntu-xenial
       - gate-fuel-nailgun-extension-cluster-upgrade-python27-db-ubuntu-xenial
 
+  - name: openstack/fuel-nailgun-extension-converted-serializers
+    template:
+      - name: merge-check
+    check:
+      - gate-fuel-nailgun-extension-converted-serializers-pep8-ubuntu-xenial
+      - gate-fuel-nailgun-extension-converted-serializers-python27-db-ubuntu-xenial
+    gate:
+      - gate-fuel-nailgun-extension-converted-serializers-pep8-ubuntu-xenial
+      - gate-fuel-nailgun-extension-converted-serializers-python27-db-ubuntu-xenial
+
   - name: openstack/fuel-nailgun-extension-iac
     template:
       - name: merge-check