Connect Crucible stats through Propolis to Oximeter

[leftwo]

This commit makes the final step in plumbing metrics generated in
Crucible Upstairs through Propolis to Oximeter. Updated versions
of both Crucible and Propolis are required (and they both require
this update).

Removed two fields in CrucibleOpts that are now obsolete.

Some updates to supply a UUID to the VolumeConstructionRequest.
It is currently just a random UUID, but that is how it was on the
crucible side already, and this change will allow Nexus, when it is
ready, to supply a real UUID. This change is not required for the
metrics, but the change is already in the Crucible side, so it
must be included when we update the Crucible rev.

New git rev and packages for both Propolis and Crucible

I'm not sure how to get the IP:Port for nexus down into the
sled-agent setup_propolis_locked() method. I was thinking either
attach it to InstanceInner as a field, or add a method to
NexusClient that would return the IP:Port for that NexusClient.
Neither way seems ideal. I'm open to other ideas.

Things that should happen before this goes in:

• Propolis PR merged to main
• Update the git rev and package file after the above merge to main
• Figure out how to provide the Nexus IP:Port to propolis-server (fix the TODO)

[leftwo]

@smklein I'd love your thoughts on how best to get the Nexus IP:Port into the update_propolis_locked() method, as I don't think what is there now can fly.

[smklein]

@smklein I'd love your thoughts on how best to get the Nexus IP:Port into the update_propolis_locked() method, as I don't think what is there now can fly.

Sorry for the delay on this. Let me pull the DNS utilities out of some of my larger patchsets, so they can be used by the sled agent.

[smklein]

Done in #1386

[leftwo]

Updated the sled-agent instance code to get the I.P. for Nexus from lazy_nexus_client's get_ip() method

Crucible and Propolis changes are all back, and the package-manifest has been updated, so this is ready for
another review.