Dawn of v1

[keroxp]

Huge refactoring and breaking changes in progress.

• renamed: HttpRouter -> Router
• added: App, createaApp

const app = createApp();
app.listen(":8899");

• feat: route() and nested router support

function UserRoutes() {
  const router = createRouter();
  return router();
}
router.route("/users", UserRoutes());

• feat: router.finally()
• renamed: router.handleError() -> router.catch()
• changed: handler function type

router.get("/", async (req: ServerRequest, {match}: RouteParams ) => {
});