Hook in the Event Generation system and revise it at the same time

[einari]

Description

With a coming change #741 - there is a lot of changes related to how events are going in and out of the system. This needs to include event generation hierarchies.

Notes:

• Get "logical" name of the event - the first generation - is what we need to store as the resource name in the IApplicationResource as the ApplicationResourceName

• When resolving - (EventApplicationResourceResolver) it needs to look through the migration hierarchy to get to the correct name

• We need to automatically walk through migrations when old events are being replayed against an EventSource or an EventProcessor