added typescript-services definition

typescript-services/typescriptServices-tests.ts

@@ -0,0 +1,7 @@
+/// <reference path="./typescriptServices.d.ts"/>
+
+import ts = require('typescript-services');
+
+// formatter: 
+var snapshot = TypeScript.SimpleText.fromString('var foo = 123;');
+var formatter = new ts.Services.Formatting.TextSnapshot(snapshot);