add naturalSort typings

naturalSort/naturalSort-tests.ts

@@ -0,0 +1,6 @@
+/// <reference path="./naturalSort.d.ts" />
+
+import naturalSort = require("naturalSort");
+
+[5, 3, 2, 4, 1].sort(naturalSort);
+["a", "c", "b", "z", "w", "l"].sort(naturalSort);

naturalSort/naturalSort.d.ts

@@ -0,0 +1,9 @@
+// Type definitions for NaturalSort
+// Project: https://github.com/studio-b12/natural-sort
+// Definitions by: Antonio Morales <https://github.com/a-morales>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare module "naturalSort" {
+  function naturalSort<T>(a: T, b: T): number;
+  export = naturalSort;
+}