[Vision & Multimodal] Introducing Dreambooth Finetuning Examples

[rjaincc]

Description

Introducing Dreambooth Finetuning Examples

Checklist

• [x] I have read the contribution guidelines.
  • General
  • SDK
  • CLI
• [x] I have coordinated with the docs team ([email protected]) if this PR deletes files or changes any file names or file extensions.
• [x] Pull request includes test coverage for the included changes.
• [x] This notebook or file is added to the CODEOWNERS file, pointing to the author or the author's team.