#448 Adding field filter option to get client by ID API

[bhatmadhavi]

Changes

Current auth0-java SDK does not provide filter option to "get Client By Id" API, which is available in auth0-management API This feature is useful if we intend to read only limited client fields.

Solution here is - Adding new method to ClientsEntity.java, which accepts "FieldsFilter" parameter

References

Please include relevant links supporting this change such as a:

• Feature Requested https://github.com/auth0/auth0-java/issues/448

Testing

Locally tested by connecting to real auth0

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

Checklist

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