Creating a registry for gRPC services, early version restarts on each modification of the set of services.

Change-Id: I4ee69873508127ad5362563bc7f0e1c7ac4996aa
diff --git a/incubator/protobuf/services/nb/pom.xml b/incubator/protobuf/services/nb/pom.xml
index 43be7ce..5316c89 100644
--- a/incubator/protobuf/services/nb/pom.xml
+++ b/incubator/protobuf/services/nb/pom.xml
@@ -41,6 +41,11 @@
             <artifactId>onos-incubator-protobuf-models</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-incubator-protobuf</artifactId>
+            <version>${project.version}</version>
+        </dependency>
 
     </dependencies>