Improve block timings metrics

[mhofman]

What is the Problem Being Solved?

Report explicit metrics for the following block timing:

• Swingset run time
• Swingset chain save time (mailbox state save)
• Total commit time
• Swingset commit time (swing-store commit)
• Cosmos commit time
• Inter block time (swingset idle)
• after commit wait time (delay in starting processing a block if previous block "maintenance" didn't complete)
• block lag (how late the current node is in processing the block)

Description of the Design

Explicit open telemetry metrics (mostly histogram, where cumulative metrics could also be derived)

Security Considerations

None

Scaling Considerations

None

Test Plan

Verify metric presence in telemetry output using #10911

Upgrade Considerations

Chain software that doesn't affect consensus