add dependecy injection examples with Gooogle Juice and Dagger2

[kaibocai]

Issue describing the changes in this PR

add dependecy injection examples with Gooogle Juice and Dagger2

Pull request checklist

• [ ] My changes do not require documentation changes
  • [ ] Otherwise: Documentation issue linked to PR -- once document is ready will link it here.
• [X] My changes should not be added to the release notes for the next release
  • [ ] Otherwise: I've added my notes to release_notes.md
• [X] My changes do not need to be backported to a previous version
  • [ ] Otherwise: Backport tracked by issue/PR #issue_or_pr
• [X] I have added all required tests (Unit tests, E2E tests)