Add sessions and refresh tokens to Users Management API

[tanya732]

Changes

Adds support for the following APIs:

https://auth0.com/docs/api/management/v2/users/get-refresh-tokens-for-user https://auth0.com/docs/api/management/v2/users/delete-refresh-tokens-for-user https://auth0.com/docs/api/management/v2/refresh-tokens/get-refresh-token https://auth0.com/docs/api/management/v2/refresh-tokens/delete-refresh-token

https://auth0.com/docs/api/management/v2/users/get-sessions-for-user https://auth0.com/docs/api/management/v2/users/delete-sessions-for-user https://auth0.com/docs/api/management/v2/sessions/get-session https://auth0.com/docs/api/management/v2/sessions/delete-session

Testing

Please describe how this can be tested by reviewers. Be specific about anything not tested and reasons why. If this library has unit and/or integration testing, tests should be added for new functionality and existing tests should complete without errors.

• [x] This change adds test coverage
• [x] This change has been tested on the latest version of the platform/language or why not

Checklist

• [ ] I have read the Auth0 general contribution guidelines
• [ ] I have read the Auth0 Code of Conduct
• [x] All existing and new tests complete without errors

[tanya732]

• /sessions

Earlier it was not added in JIRA, now I have added /sessions and /refresh-tokens API's in the same PR