add config file for visual studio code

Author: tiagoschenkel

.vscode/settings.json

@@ -0,0 +1,5 @@
+// Place your settings in this file to overwrite default and user settings.
+{
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "tslint.configFile": "tslint.test.json"
+}