Added permissions property to interface User.

[Sarvesh67]

Pull request checklist

Please check if your PR :rocket: fulfills the following requirements:

• [ ] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been reviewed and added / updated if needed (for bug fixes / features)
• [x] Build (npm run start) was run locally and new changes were working correctly
• [x] Lint (npm run linter) has passed locally and any fixes were made for failures

Pull request type

Please check the type of change your PR introduces: - [ ] Bugfix - [ ] Feature - [x] Code style update (formatting, renaming) - [ ] Refactoring (no functional changes, no api changes) - [ ] Build related changes - [ ] Documentation content changes - [ ] Other (please describe): Fixes #59

What is the new behavior?

• Added permissions property to User interface

Does this introduce a breaking change?

• [ ] Yes
• [x] No