ONOS-894 : Implemented GroupProvider

Change-Id: I2755abd433921a420ad545fcf6fef61e90a8b89f
diff --git a/providers/openflow/pom.xml b/providers/openflow/pom.xml
index 48ce6fe..4a733fd 100644
--- a/providers/openflow/pom.xml
+++ b/providers/openflow/pom.xml
@@ -37,6 +37,7 @@
         <module>host</module>
         <module>packet</module>
         <module>flow</module>
+        <module>group</module>
     </modules>
 
     <dependencies>