Refactor protocol buffer to split models into different packages

Change-Id: I26152ba227ebe9afd871c6e501ccca17c49e1e4e
diff --git a/apps/pom.xml b/apps/pom.xml
index ad946b9..5f0052b 100644
--- a/apps/pom.xml
+++ b/apps/pom.xml
@@ -48,7 +48,7 @@
         <module>flowspec-api</module>
         <module>test</module>
         <module>segmentrouting</module>
-        <!-- <module>kafka-integration</module> -->
+        <module>kafka-integration</module>
         <module>pcep-api</module>
         <module>iptopology-api</module>
         <module>pce</module>