Changes to Caller identity, resolved universe, effective scopes [read]

added the optional property account_access to the response with the 200 status

added the optional property credential_universe to the response with the 200 status

added the optional property error/request_id to the response with the default status

the response property error became required for the status default

the response property error/code became required for the status default

the response property error/message became required for the status default