Creates and cache with the event-packages contained in the WaveFront
Lookup the Event containing event-package with the fingerprint Note. If the Event is not found it the _event_cache but it's found in the event_package_cache then a new Event is created with this with the event-package
Register the event-package with the fingerprint If the event has not been connect to the graph it will also connect it Via the Event.connect function.
Cache holding the event package current processed