Lumen 5.5 - Fix application routes loop

[JuanKman94]

Using Lumen 5.5 app()->getRoutes() no longer works, the method needs to be called directly on the router

[thiagorb]

@JuanKman94 I guess it would be better to have some fallback logic to keep it working with versions prior to 5.5, cause before 5.5 there was no router property in the Application class. I wrote it as a comment to #63.