Retrieve tenantid, storage_urls from authentication

These changes allow the API tests to retrieve Tenand Id (Project Id) and Storage URL information from the service catalog.

Modified the configuration values available.
If authentication is used, the API tests will authenticate to identity with the username and apikey provided.
From the service catalog, it will retrieve the tenant id.
The storage url will be determined by the type of url (internal or public) and the region provided (ORD, IAD, etc.)

I may add additional information later; however, the schema validation of the auth response is not critical to the deuce api tests.
To a great extent, the way the authentication is done was to verify OpenCAFE concepts and how we could use them.