feat(core): restrict modification of createdon and modifiedon

[yeshamavani]

gh-2158

Description

restrict modification of createdon and modifiedon with this the existing functionality will be same all the user needs to do is pass on the property to restrict otherwise it will allow you to pass createdOn and modifiedOn via API as well(current behaviour)

Fixes #2158

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Intermediate change (work in progress)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Added it to an existing repository and tested it

Checklist:

• [x] Performed a self-review of my own code
• [x] npm test passes on your machine
• [ ] New tests added or existing tests modified to cover all changes
• [ ] Code conforms with the style guide
• [ ] API Documentation in code was updated
• [ ] Any dependent changes have been merged and published in downstream modules