I created the fork of asynchttpserver for the test: [https://github.com/vegansk/asynchttpserver2](https://github.com/vegansk/asynchttpserver2) where you can read entire body using `request.body.readAll`, get the length of the request without reading it via `request.body.len`. And the main feature - you can read it via stream: `request.body.getStream`.
And the latter method is bothering me. asynchttpserver is async, standard streams are not. Thats why I want to write asyncstreams module for the standard library. What do you think about it?
