Onelogin-aws-assume-role

- Ensure not only that client_id and client_secret are not None, review also that have no empty values
- Retrieve properly region and ip

- Fix "UnboundLocalError: local variable ip referenced before assignment"

- Fix to make the script compatible with python3.

- Introduce Interactive mode (-x).
- Refactor how MFA is processed., Refactor iterations.
- Support SMS Token, Support OneLogin Protect Push.
- Improve UX: Catch Errors and let the script recover.
- Add -z --duration parameter to allow set AWS Credentials Session Duration, previously fixed to 3600s (that is now the default value if not parameter set).
- Replace deprecated optparse by argparse.

- Adding instructions for Docker installation method
- For security reasons, remove the ability to provide the IP using command line parameter and instead be able to provide IP address at the onelogin.sdk.json file

* Stop script if the selected user has no available AWS Role
* Fix syntax error