[ONOS-7731] Add openstack vtap skeleton code

Change-Id: Ib3d3c757cb90a8525af3932619c3877f7f4c1b4f
diff --git a/apps/openstackvtap/app/src/main/resources/definitions/dummy.json b/apps/openstackvtap/app/src/main/resources/definitions/dummy.json
new file mode 100644
index 0000000..7a73a41
--- /dev/null
+++ b/apps/openstackvtap/app/src/main/resources/definitions/dummy.json
@@ -0,0 +1,2 @@
+{
+}
\ No newline at end of file