using some smart way to implement the async programing in the `Plugin::start`

[vincenzopalazzo]

I think this part of our codebase https://github.com/laanwj/cln4rust/blob/master/plugin/src/plugin.rs#L260-L284

is causing problems like the one https://github.com/coffee-tools/folgore/issues/25

We should use a library like https://github.com/cloudhead/popol or https://github.com/tokio-rs/mio to await new events