Issue #1567 Native support for schema based multitenancy in sql-dao l…

[ihussainbadshah]

…ibrary.

Please refer to our contributing docs for any questions on submitting a pull request.
Issues are required for both bug fixes and features.

Resolves https://github.com/HARMAN-Auto/sp-platform/issues/1567

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Describe behaviour before the change

• SQL DAO library did not support schema based multitenancy solution. Only supported deployment was database per tenant as part of multitenant deployment.

Describe behaviour after the change

• SQL DAO library now supports schema based multitenancy and tenants can share a database with separate schema for each tenant.

Pull request checklist

• I have read the CONTRIBUTING.md
• My code follows the code style of this project
• Tests for the changes have been added (for bug fixes / features)
• All new and existing tests passed.
• Docs have been reviewed and added / updated if needed (for bug fixes / features)

Does this introduce a breaking change?

• Yes
• No

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