no support for domain-specific roles

[Summer]

now keystone support create a domain-specific role, we can use keystone to do the following operations:
identity:get_domain_role GET /v3/roles/{role_id} where role.domain_id is not null
identity:list_domain_roles GET /v3/roles?domain_id where role.domain_id is not null
identity:create_domain_role POST /v3/roles where role.domain_id is not null
identity:update_domain_role PATCH /v3/roles/{role_id} where role.domain_id is not null
identity:delete_domain_role DELETE /v3/roles/{role_id} where role.domain_id is not null

but, now openstackclient cli is not support to create role with domain argument. we should add the domain argument to do this

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/283554
Committed: https://git.openstack.org/cgit/openstack/python-openstackclient/commit/?id=5eb7e626b18b033f97f3cf10f2791529f9d75789
Submitter: Jenkins
Branch: master

commit 5eb7e626b18b033f97f3cf10f2791529f9d75789
Author: Henry Nash <email address hidden>
Date: Tue Feb 23 11:42:40 2016 +0000

    Add support for domain specific roles

    A role entity can now be specified as domain specific.

    Closes-bug: #1606105
    Change-Id: I564cf3da1d61f5bfcf85be591480d2f5c8d694a0

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/python-openstackclient 3.0.0 release.