[ONOS-1284][ONOS-1869]the implementation of tunnel subsystem.It includes
test
commands, store, service. the store use eventually consistent.

Change-Id: Id54224ff65f3f2fa0a1d7adb072a2fe664987d18
diff --git a/providers/pom.xml b/providers/pom.xml
index 09d3487..7d9f38f 100644
--- a/providers/pom.xml
+++ b/providers/pom.xml
@@ -37,6 +37,7 @@
         <module>host</module>
         <module>netconf</module>
         <module>null</module>
+        <module>tunnel</module>
     </modules>
 
     <dependencies>