Making the IntentSynchronizer constructor public, so that an executor service can be passed from outside.

Change-Id: If96bd4dfa90222db36061d3f493338217d82c2de
diff --git a/apps/sdnip/src/main/java/org/onosproject/sdnip/IntentSynchronizer.java b/apps/sdnip/src/main/java/org/onosproject/sdnip/IntentSynchronizer.java
index a3cd6875..2eb5d0f 100644
--- a/apps/sdnip/src/main/java/org/onosproject/sdnip/IntentSynchronizer.java
+++ b/apps/sdnip/src/main/java/org/onosproject/sdnip/IntentSynchronizer.java
@@ -74,7 +74,7 @@
      * @param intentService the intent service
      * @param executorService executor service for synchronization thread
      */
-    IntentSynchronizer(ApplicationId appId, IntentService intentService,
+    public IntentSynchronizer(ApplicationId appId, IntentService intentService,
                        ExecutorService executorService) {
         this.appId = appId;
         this.intentService = intentService;