feat: add image embedding ML model type

[IanMenendez]

Description

Adds image embedding ML model type to allow registering models for the image embedding task

Issues Resolved

#2621

Check List

• [x] New functionality includes testing.
  • [x] All tests pass
• [x] New functionality has been documented.
  • [x] New functionality has javadoc added
• [x] Commits are signed per the DCO using --signoff

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