Typescript migration:

* resources/frontendResource.js
* resources/taskResource.js
* resources/versionResource.js

Also some refactoring towards using promises with async / await.

server/resources/versionResource.ts

@@ -0,0 +1,12 @@
+import {success} from "../utils/resources";
+import {version} from "../config";
+import {Request, Response} from "express";
+
+export function get (req: Request, res: Response): void {
+    success(
+        res,
+        {
+            version
+        }
+    );
+}