Added fs-ext tests

fs-ext/fs-ext-tests.ts

@@ -0,0 +1,28 @@
+/// <reference path="fs-ext.d.ts" />
+/// <reference path="../node/node.d.ts" />
+
+import fs = require('fs-ext');
+
+var num:number;
+var str:string;
+
+//from node.js 'fs' module 
+fs.appendFileSync(str, "data");
+
+fs.flock(num, str, (err)=>{ 
+});
+fs.flockSync(num, str);
+
+fs.fcntl(num, str, num, (err, res)=>{	
+});
+fs.fcntl(num, str, (err, res)=>{
+});
+fs.fcntlSync(num, str, num);
+
+fs.seek(num, num, num, (err, pos)=>{
+});
+fs.seekSync(num, num, num);
+
+fs.utime(str, num, num, (err)=>{
+});
+fs.utimeSync(str, num, num);