Revert "Revert "YANG runtime manager to register default serializers.""

This reverts commit 6beebeb73e2029e486b713869eed5d64e7f3b066.

Change-Id: Ia044dcbe86ae5557324f330e8659bd9e4b35cf12
diff --git a/apps/yang/pom.xml b/apps/yang/pom.xml
index c277ece..d523e25 100644
--- a/apps/yang/pom.xml
+++ b/apps/yang/pom.xml
@@ -35,5 +35,15 @@
             <artifactId>onos-yang-runtime</artifactId>
             <version>${yang.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-yang-serializers-json</artifactId>
+            <version>${yang.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-yang-serializers-xml</artifactId>
+            <version>${yang.version}</version>
+        </dependency>
     </dependencies>
 </project>
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