[WIP] feat(respository): implement all crud functions for relational repositories

[achrinza]

fixes #5025

Signed-off-by: Rifa Achrinza [email protected]

Checklist

• [x] DCO (Developer Certificate of Origin) signed in all commits
• [x] npm test passes on your machine
• [x] New tests added or existing tests modified to cover all changes
• [x] Code conforms with the style guide
• API Documentation in code was updated
• Documentation in /docs/site was updated
• Affected artifact templates in packages/cli were updated
• Affected example projects in examples/* were updated

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[mrbatista]

@achrinza Any update to this PR?

[stale[bot]]

This pull request has been marked stale because it has not seen activity within two months. It will be closed within 14 days of being stale unless there is new activity.

[mrbatista]

@achrinza Any progress for this PR?

[mrbatista]

@achrinza Ping