500 error code for POST /oauth/token

[eastandwestwind]

Bug Description

500 error when attempting POST {{host}}/oauth/token:

ValueError: Scopes are required when using the OAUTH_ROOT_CLIENT_ID for POST {{host}}/oauth/token

Cause

POST {{host}}/oauth/token does not pass in needed scopes to fideslib through ClientDetail.get()

Steps to Reproduce

1. make server on fidesops
2. use postman to ping POST {{host}}/oauth/token

Expected behavior

200 OK

Additional info

Add a test for root client oauth:

class TestAcquireAccessToken:
    def test_get_access_token_root_client(self, db, url, api_client):
        data = {
            "client_id": config.security.OAUTH_ROOT_CLIENT_ID,
            "client_secret": config.security.OAUTH_ROOT_CLIENT_SECRET,
        }

        response = api_client.post(url, data=data)
        # Fideslib will raise a ValueError: Scopes are required when using the OAUTH_ROOT_CLIENT_ID