Calculate when the next alarm(s) are

[aseigo]

ICal.Event.next_alarms(event) -> Given an event with alarms, list the next alarm(s).

ICal.Todo.next_alarms(event) -> Given a todo with alarms, list the next alarm(s).

These functions should either return streams (like recurrence calculations do), or return the next alarm (or next N alarms, with N being a number passed in as a parameter?) The stream approach is the most flexible, and probably the preferred approach.

Alarms also need to take recurrence into consideration.