[CORD-3100] Moving vtn-service to use the new onos-service APIs

Change-Id: Id6f05a18499a7d4dfcf53390f01c1d4f13bc61c0
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..485dee6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.idea