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.)