Allow customization of the API endpoint

[axos88]

package a.b.c.d.e.f.shared

trait Api {
  def store(data: Seq[Todo]): Unit
  def load(): Seq[Todo]
}

  val routes: Route = pathPrefix("api") {
    path(Segments) { segments =>
      post(AutowireServer.dispatch(segments))
    }
  }

This results in calls such as /api/a/b/c/d/e/f/shared/Api/store, which is a bit weird. I'd love it if it would be possible to leave out the namespacing, and leave only /api/store, or some customizable prefix, using a class attribute perhaps?