Daemon Pools

[shikokuchuo]

Allowing daemons to submit tasks to the same set of daemons to avoid recursive daemon generation.

(#89, #220)

[shikokuchuo]

FYI @noamross as you very much know what you're doing, #292 should now already enable your ask in #89. I have todos to make it all easier to set up.

Also cc @DavZim, @wlandau.

[shikokuchuo]

Added remaining todos to the top of the issue.

[shikokuchuo]

There are actually a lot of details to get right, and I am going to delay implementation to prioritize other features.