ONOS-2744 Adding a small app to manage cluster IP alias; requires arping tool.

Change-Id: Ib7032586206542c1db67d248196ad8a883d67b51
diff --git a/apps/pom.xml b/apps/pom.xml
index b95d144..3e34a42 100644
--- a/apps/pom.xml
+++ b/apps/pom.xml
@@ -52,6 +52,7 @@
         <module>xos-integration</module>
         <module>pcep-api</module>
         <module>olt</module>
+        <module>cip</module>
         <module>flowanalyzer</module>
         <module>vtnrsc</module>
         <module>vtn</module>