ONOS YANG app to provide model converter service.

Change-Id: Icfbf10dd9ce2728b40d26a39006b8b013227adeb
diff --git a/apps/yang/pom.xml b/apps/yang/pom.xml
index d523e25..743899f 100644
--- a/apps/yang/pom.xml
+++ b/apps/yang/pom.xml
@@ -17,7 +17,7 @@
         <onos.app.title>Onos Yang Extension</onos.app.title>
         <onos.app.url>http://onosproject.org</onos.app.url>
         <onos.app.readme>Onos Yang Extension.</onos.app.readme>
-        <yang.version>1.12.0-b5</yang.version>
+        <yang.version>1.12.0-b6</yang.version>
     </properties>
     <dependencies>
         <dependency>
diff --git a/apps/yang/src/main/java/org/onosproject/yang/YangRuntimeManager.java b/apps/yang/src/main/java/org/onosproject/yang/YangRuntimeManager.java
index c9a9ce9..9d64679 100644
--- a/apps/yang/src/main/java/org/onosproject/yang/YangRuntimeManager.java
+++ b/apps/yang/src/main/java/org/onosproject/yang/YangRuntimeManager.java
@@ -24,6 +24,9 @@
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.CoreService;
+import org.onosproject.yang.model.ModelConverter;
+import org.onosproject.yang.model.ModelObjectData;
+import org.onosproject.yang.model.ResourceData;
 import org.onosproject.yang.model.YangModel;
 import org.onosproject.yang.runtime.CompositeData;
 import org.onosproject.yang.runtime.CompositeStream;
@@ -50,7 +53,7 @@
 @Service
 @Component(immediate = true)
 public class YangRuntimeManager implements YangModelRegistry,
-        YangSerializerRegistry, YangRuntimeService {
+        YangSerializerRegistry, YangRuntimeService, ModelConverter {
 
     private static final String APP_ID = "org.onosproject.yang";
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -118,4 +121,16 @@
     public CompositeStream encode(CompositeData cd, RuntimeContext rc) {
         return runtimeService.encode(cd, rc);
     }
+
+    @Override
+    public ModelObjectData createModel(ResourceData resourceData) {
+        // TODO implementation.
+        return null;
+    }
+
+    @Override
+    public ResourceData createDataNode(ModelObjectData modelObjectData) {
+        // TODO implementation.
+        return null;
+    }
 }