Human Readable Duration Display

[tustvold]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

Currently durations are printed using the default Display for chrono::Duration which ISO 8601. However, this format is:

• Not very readable
• Is misleading as it displays days, despite the fact these will not be handled as calendar days for arithmetic (like intervals)

Describe the solution you'd like

We should display the values faithfully, e.g. as 139493 milliseconds for DurationMillisecondArray

Describe alternatives you've considered

Additional context

[tustvold]

label_issue.py automatically added labels {'arrow'} from #4581