This test shows how to do simple code splitting with TypeScript and webpack.

See the comments in `app.ts` for a quick overview of the process.

More information can be found at these sites:
- https://www.typescriptlang.org/docs/handbook/modules.html#dynamic-module-loading-in-nodejs
- https://webpack.js.org/guides/code-splitting/
- https://github.com/webpack/webpack/tree/master/examples/code-splitting