Move xos-db into it's own chart

Have it issue it's own PersistentVolumeClaim if required

Change-Id: I408559b2cf4481e011e47c310147fd36c8c284bc
diff --git a/xos-db/values.yaml b/xos-db/values.yaml
new file mode 100644
index 0000000..35e2ca7
--- /dev/null
+++ b/xos-db/values.yaml
@@ -0,0 +1,30 @@
+---
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# XOS Postgres database related values
+
+imagePullPolicy: 'Always'
+postgresImage: 'postgres:10.3-alpine'
+
+# Database name/username/password
+xosDBName: 'xos'
+xosDBUser: 'postgres'
+xosDBPassword: 'password'
+
+# DB persistence related vars
+needDBPersistence: false
+storageClassName: cord-block
+pvClaimName: xosdb-pv-claim
+