Support MultiKueue for Plain Pod Integration

[tenzen-y]

What would you like to be added: I'd like to support the MultiKueue for the plain pod the same as the Job and JobSet.

Why is this needed: In general multi tenant clusters not for ML/HPC, we deploy applications (~=Deplyment/Knative Service) and jobs such for DB batch processing into mixed multiple clusters. In such clusters, I'd like to manage quotas in all workloads by the Kueue.

Completion requirements:

This enhancement requires the following artifacts:

• [ ] Design doc
• [ ] API change
• [ ] Docs update

The artifacts should be linked in subsequent comments.

[mimowo]

There was also some interest and initial discussion on wg-batch Slack

[tenzen-y]

There was also some interest and initial discussion on wg-batch Slack

Thank you for pointing this out! Let me check it.