Move persistence query into ViewCreationActor

[SeanKilleen]

This way we'll actually store the offset and resume it within that actor.

Also, this will mean making the actor a persistent actor so we can update the snapshot and offset it as well.

ef: https://github.com/SeanKilleen/2022-04_portfolioss_repro/pull/1/files

[SeanKilleen]

The idea here is that we'd turn the create views actor into a persistent actor itself. It would keep track of the offset it processed and it would control the replay of the events to itself once it starts up.

In this case, we care more about the current count than anything, so we could probably snapshot every 1000 messages or so to keep things tidy.

I have a WIP PR from the private repo on this that languished a bit -- https://github.com/SeanKilleen/PortfoliOSS/pull/33 -- I can
surface that code here if it would be helpful, and will probably do so in due time.