Refactor lib/flows code to include initial router component

packages/node_modules/@node-red/runtime/lib/index.js

@@ -19,6 +19,7 @@ var when = require('when');
 var externalAPI = require("./api");
 
 var redNodes = require("./nodes");
+var flows = require("./flows");
 var storage = require("./storage");
 var library = require("./library");
 var events = require("./events");
@@ -273,6 +274,7 @@ var runtime = {
     storage: storage,
     events: events,
     nodes: redNodes,
+    flows: flows,
     library: library,
     exec: exec,
     util: require("@node-red/util").util,