Lowering log level and creating example openconfig device file for ODTN infinera simulators

Change-Id: I8c669a788e31fdbaedf1274bedaaa709b20b13c1
diff --git a/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/tapi/TapiObjectHandler.java b/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/tapi/TapiObjectHandler.java
index 040982f..f742268 100644
--- a/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/tapi/TapiObjectHandler.java
+++ b/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/tapi/TapiObjectHandler.java
@@ -255,7 +255,7 @@
 
         // for debug
         CharSequence strNode = toCharSequence(toXmlCompositeStream(toCompositeData(rData)));
-        log.info("XML:\n{}", XmlString.prettifyXml(strNode));
+        log.debug("XML:\n{}", XmlString.prettifyXml(strNode));
 
         return rData;
     }