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

Change-Id: I7f3457882830de050d1357254fc5483faf91d03f
diff --git a/xos-core/requirements.yaml b/xos-core/requirements.yaml
index 2d165b1..de38084 100644
--- a/xos-core/requirements.yaml
+++ b/xos-core/requirements.yaml
@@ -15,10 +15,10 @@
 
 dependencies:
 - name: xos-db
-  version: 0.1.0-dev0
+  version: 1.0.0
   repository: file://../xos-db
 - name: xos-gui
-  version: 1.1.0-dev
+  version: 1.2.0
   repository: file://../xos-gui
   condition: xos-gui.enabled