[FEATURE REQUEST][download-requirements] Add mechanism to use manifest's configuration/image-registry doc to download wanted images

[sbbroot]

Is your feature request related to a problem? Please describe. Currently we filter images in such way:

1. If there is no configuration/image-registry doc filter images based on used features.
2. If there is configuration/image-registry doc then ignore filtering and download everything in that doc.

Such mechanism is confusing and leads to problems

Describe the solution you'd like It would be good to implement a flag such as --use-image-registry-doc so that images would be downloaded explicitly.

Describe alternatives you've considered .

Additional context Current mechanism must be based on a flag used instead of a document check.

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DoD checklist

• Changelog
  • [ ] updated
  • [ ] not needed
• COMPONENTS.md
  • [ ] updated
  • [ ] not needed
• Schema
  • [ ] updated
  • [ ] not needed
• Backport tasks
  • [ ] created
  • [ ] not needed
• Documentation
  • [ ] added
  • [ ] updated
  • [ ] not needed
• [ ] Feature has automated tests
• [ ] Automated tests passed (QA pipelines)
  • [ ] apply
  • [ ] upgrade
  • [ ] backup/restore
• [ ] Idempotency tested
• [ ] All conversations in PR resolved
• [ ] Solution meets requirements and is done according to design doc
• [ ] Usage compliant with license

[seriva]

Replica of https://github.com/epiphany-platform/epiphany/issues/3260 so closing.