[ONOS-6465] gRPC Protocol and controller

Change-Id: I0ae997f234ce95a78db2db1917f2cbbe3696ccfd
diff --git a/protocols/pom.xml b/protocols/pom.xml
index b823f9c..23b428b 100644
--- a/protocols/pom.xml
+++ b/protocols/pom.xml
@@ -43,6 +43,7 @@
         <module>lisp</module>
         <module>restconf</module>
         <module>tl1</module>
+        <module>grpc</module>
     </modules>
 
     <dependencies>