This is similar to `rosenpass exchange`/`rosenpass exchange-config`.
It's however slightly different to the configuration file models the `rp
exchange` command line.
Dynamically dispatch WireguardBrokerMio trait in AppServer. Also allows for mio event registration and poll processing, logic from dev/broker-architecture branch
Co-authored-by: Prabhpreet Dua <615318+prabhpreet@users.noreply.github.com>
Co-authored-by: Karolin Varner <karo@cupdev.net>