Function deliver_planned 

pub async fn deliver_planned(
    homes: &HarnessHomes,
    caller: &Caller,
    envelope: &Envelope,
    plan: &Plan,
    queue: bool,
    notify_when_idle: bool,
) -> Outcome

Deliver envelope to every receiver plan names: a to receiver through its door (a stopped session is resumed first), a cc receiver filed unread and not woken. The one delivery every agent-routed message takes, whichever door it came in by.