[heat ] Create for all client and non-client lib xena branch

This creates the stable/xena branch for all client
and non-client libraries now that we are past the
lib freeze on September 02.

If a team wants to wait for a specific patch to make it to the library,
someone from the team can -1 the patch to have it held,or update that
patch with a different commit SHA.

Patches with no response will be merged by Friday, September 10.

Change-Id: If9f803026debd521ae9ccf00e06c3ef719215a6d

deliverables/xena/heat-translator.yaml

@@ -15,3 +15,6 @@ releases:
     projects:
       - repo: openstack/heat-translator
         hash: 0b8fba577f4ba2ff5131f71fc72ef846400ccc88
+branches:
+  - name: stable/xena
+    location: 2.4.1

deliverables/xena/python-heatclient.yaml

@@ -11,3 +11,6 @@ releases:
     projects:
       - repo: openstack/python-heatclient
         hash: b4383147fec4cf3667d3c9c2d79e088780a1498c
+branches:
+  - name: stable/xena
+    location: 2.4.0

deliverables/xena/tosca-parser.yaml

@@ -15,3 +15,6 @@ releases:
     projects:
       - repo: openstack/tosca-parser
         hash: 0014362ab14db122b02630bbf99c3205e5fa58aa
+branches:
+  - name: stable/xena
+    location: 2.4.1