Added Gremlin scripts to list Flows and Flow Entries vertices.
diff --git a/titan/listFlow b/titan/listFlow
new file mode 100644
index 0000000..6b23be5
--- /dev/null
+++ b/titan/listFlow
@@ -0,0 +1,2 @@
+g.stopTransaction(SUCCESS);
+g.V('type', 'flow').map;