CJ-157 | Publish API for Data Models

[aarshi0301]

Change description

JIRA: https://atlanhq.atlassian.net/browse/CJ-157
Doc: https://www.notion.so/atlanhq/Model-Flow-10a0e027187b8027ac0fe2d4537a52d4

Contains following:

PreRequisite:
Update/Create Models typedef

1. Entity creation
2. Entity update
3. Attribute creation
4. Attribute update
5. Entity Mapping
6. Entity association
7. Attribute Mapping
8. Attribute association
9. Delete Entity
10. Delete Attribute

Type of change

• Bug fix (fixes an issue)
• New feature (adds functionality)

Related issues

Fix #1

Checklists

Development

• Lint rules pass locally
• Application changes have been tested thoroughly
• Automated tests covering modified code pass

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

Code review

• Pull request has a descriptive title and context useful to a reviewer. Screenshots or screencasts are attached as necessary
• "Ready for review" label attached and reviewers assigned
• Changes have been reviewed by at least one other contributor
• Pull request linked to task tracker where applicable