Reorganizing ODTN app structure

- separated code which could be referenced from drivers

Change-Id: Ic2c0ae0507abc626771dfaf7a8fc18b5a715cc30
diff --git a/modules.defs b/modules.defs
index 5f6ce6d..bd785ba 100644
--- a/modules.defs
+++ b/modules.defs
@@ -245,7 +245,8 @@
     '//apps/simplefabric:onos-apps-simplefabric-oar',
     '//apps/kafka-integration:onos-apps-kafka-integration-oar',
     '//apps/rabbitmq:onos-apps-rabbitmq-oar',
-    '//apps/odtn:onos-apps-odtn-oar',
+    '//apps/odtn/api:onos-apps-odtn-api-oar',
+    '//apps/odtn/service:onos-apps-odtn-service-oar',
     '//apps/mcast:onos-apps-mcast-oar',
     '//apps/layout:onos-apps-layout-oar',
     '//apps/imr:onos-apps-imr-oar',