XOS/NEM charts, use a global registry var, split docker image name/tag/pullPolicy

Change-Id: I7f3457882830de050d1357254fc5483faf91d03f
diff --git a/xos-profiles/demo-simpleexampleservice/Chart.yaml b/xos-profiles/demo-simpleexampleservice/Chart.yaml
index 10e3b26..ff04d86 100644
--- a/xos-profiles/demo-simpleexampleservice/Chart.yaml
+++ b/xos-profiles/demo-simpleexampleservice/Chart.yaml
@@ -14,8 +14,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-apiVersion: v1
-appVersion: "1.0"
-description: A Helm chart that launches and configures SimpleExampleService. It's assumed that base-kubernetes profile is installed.
 name: demo-simpleexampleservice
-version: 0.1.0
+description: A Helm chart that launches and configures SimpleExampleService. It's assumed that base-kubernetes profile is installed.
+icon: https://guide.opencord.org/logos/cord.svg
+
+version: 1.0.0
+
+# xosproject/tosca-loader version
+appVersion: 1.1.3