Add missing fields to `kubectl describe statefulset` output

[kfess]

What would you like to be added:

Add the following fields to kubectl describe statefulset output:

• ServiceName
• PodManagementPolicy
• PersistentVolumeClaimRetentionPolicy (WhenDeleted / WhenScaled)

Why is this needed:

IMO, these fields are basic and important for understanding the behavior but are not currently shown.

• ServiceName: frequently used to associate StatefulSet with Service
• PodManagementPolicy: affects rollout and scaling behavior
• PersistentVolumeClaimRetentionPolicy: directly relates to data retention on deletion or scale-down

/sig cli
/kind feature
/area kubectl
/assign

[k8s-ci-robot]

This issue is currently awaiting triage.

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Details

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