Added support for Log Streams

[cv711]

Changes

NOTE: this is a duplicate of #511

The new class that was added is called LogStreamsManager and it's adding the following endpoints:

GET /api/v2/log-streams
GET /api/v2/log-streams/{id}
POST /api/v2/log-streams
PATCH /api/v2/log-streams/{id}
DELETE /api/v2/log-streams/{id}

References

The relevant operations for Log Streams are described here

Also a correction: the relevant docs here for creating a stream have a typo, the httpAuthorizationHeader field should be httpAuthorization but I don't have access to the api2 repo to open a proper issue there.

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.

• This change adds unit test coverage
• This change adds integration test coverage

Checklist

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