Changes to Open a realtime translation session

added the new internal_error enum value to the error/type response property for the response status 400

added the new internal_error enum value to the error/type response property for the response status 401

added the new internal_error enum value to the error/type response property for the response status 404

added the new internal_error enum value to the error/type response property for the response status 429

added the new internal_error enum value to the error/type response property for the response status 501

added the new internal_error enum value to the error/type response property for the response status 502

added the new permission_error enum value to the error/type response property for the response status 400

added the new permission_error enum value to the error/type response property for the response status 401

added the new permission_error enum value to the error/type response property for the response status 404

added the new permission_error enum value to the error/type response property for the response status 429

added the new permission_error enum value to the error/type response property for the response status 501

added the new permission_error enum value to the error/type response property for the response status 502

endpoint added