Add typings for the mkpath library

mkpath/mkpath-tests.ts

@@ -0,0 +1,9 @@
+/// <reference path="mkpath.d.ts" />
+import mkpath = require('mkpath');
+
+mkpath('red/green/violet', function (err) {
+  if (err) throw err;
+  console.log('Directory structure red/green/violet created');
+});
+
+mkpath.sync('/tmp/blue/orange', 700);

mkpath/mkpath.d.ts

@@ -0,0 +1,15 @@
+// Type definitions for mkpath v0.1.0
+// Project: https://www.npmjs.com/package/mkpath
+// Definitions by: Jared Klopper <https://github.com/optical>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module 'mkpath' {
+  module mkpath {
+    function sync(path: string, mode?: number): void;
+  }
+
+  function mkpath(path: string, callback?: (err: any) => void): void;
+  function mkpath(path: string, mode?: number, callback?: (err?: any) => void): void;
+
+  export = mkpath;
+}