added requireReload function

ts/index.ts

@@ -2,12 +2,14 @@
 /// <reference path="./smartfile.plugins.ts" />
 /// <reference path="./smartfile.simple.ts" />
 /// <reference path="./smartfile.vinyl.ts" />
+/// <reference path="./smartfile.require.ts" />
 var plugins = SmartfilePlugins.init();
 
 
 var smartfile:any = {};
 SmartfileSimple.init(smartfile);
 SmartfileVinyl.init(smartfile);
+SmartfileRequire.init(smartfile);