This is an QSL/FAPI events inspired event system for Rust.
Event is a place storing callbacks for this event with phases and an invoker with a default implementation. To create an event, use new or new_default functions in the Event struct.
Please check the test module for examples.
You need callbacks to listen for events. When registering a callback into an event, you need to provide a phase id for implementing ordering.
Favent use phases to order callbacks. You need to order the phases when creating an event.