Add support for modern web frameworks like Hono or Oak

[nikrooz]

With modern JavaScript runtimes that follow web standards, we now have frameworks like Hono and Oak that let you write code without worrying about where it will run.

It would be good to simplify the integration of Restate with these frameworks, maybe by introducing something like

const app = new Hono()
const greeter = service({
  name: "Greeter",
  handlers: {
    greet: async (ctx: Context, greeting: string) => {
      return `${greeting}!`;
    },
  },
});

app.use('*', someRestateMiddleware(greeter))
app.get('/some-user-facing-path', (c) => {
  return c.text('Hello Hono!')
})

Deno.serve(app.fetch);