Return response object from client

[KPLauritzen]

Instead of raising for status and returning json object, just return the response object in the get method.
This will mimic the behaviour of the client in https://requests-oauthlib.readthedocs.io/en/latest/oauth2_workflow.html

https://github.com/dingobar/python-oauth-encrypt/blob/bda9270e3b2328b38cb65316e8a947bd7d941578/oauth_encrypt/client.py#L63