Event Subscription Improvements

[jeremydmiller]

Just tracking work for finally building out a first class subscription model for Marten events that uses the async daemon, but doesn't necessarily force you to build custom IProjection

• True "first class subscriptions" where it skips the grouped projection model that the daemon uses today, and wouldn't take part in rebuilds
• "Side Effects", being able to just register or do a callback that says "hey, I've got a projection updated, do you want to make other changes like in some kind of outbox of your own"
• Side Effects from Aggregation Projections #2533 -- Appending events from a projection
• Mechanism to Import Events #1435 -- Bulk writing events might actually be enabled by the "append event in projections"

[jeremydmiller]

Tasks

• Add ability to register IChangeListener to EventRange that subscriptions can use
• ProjectionUpdateBatch.PostUpdateAsync() should look for IChangeListener objects on EventRange
• ProjectionOptions.AllShards() should return the shards from projections too
• SubscriptionWrapper so you can directly apply ISubscription
• AddSubscriptionWithServices<T>(Lifecycle) where T is ISubscription. Add option for AsyncOptions`. Take in name as well
• Validate on uniqueness of subscription names w/ projection names
• Docs of course
• Xml API comments

Rewind

• IProjectionDaemon.RewindSubscriptionAsync(name)

Test Plan

• Subscriptions are coming through ProjectionOptions.AllShards()
• Can run a very simple subscription that just records the events it receives, full stop

Tasks from Wolverine Integration

• New interface for ISubscriptionAgent called ISubscriptionController that only has Task ReportCriticalFailureAsync(Exception ex); and `Task RecordDeadLetterEventAsync(DeadLetterEvent @event);
• New overload of RecordDeadLetterEventAsync(IEvent, Exception) to simplify the usage
• ReportCriticalFailureAsync overload that takes the furthest ceiling, and that gets the new progress. Update the new progress internally
• In Wolverine, use the new ISubscriptionController in the ISubscription interface so you don't depend on Agent being set on EventRange

[jeremydmiller]

This work is somewhat pending on the matching work with Wolverine. I'm using a local copy of Marten with Wolverine to flush out any remaining issues

[jeremydmiller]

Closed by #3115