Added onos-ui-archetype as a partial archetype to bootstrap UI development.
Modified onos-cli-archetype to be a partial archetype.

Change-Id: I172bca5f67519f052bbb116486b3f1d7c51bc4bf
diff --git a/tools/package/archetypes/pom.xml b/tools/package/archetypes/pom.xml
index 5a50cb5..fe7cf00 100644
--- a/tools/package/archetypes/pom.xml
+++ b/tools/package/archetypes/pom.xml
@@ -36,6 +36,7 @@
         <module>api</module>
         <module>bundle</module>
         <module>cli</module>
+        <module>ui</module>
     </modules>
 
     <build>