Support multi add/remove for some add/remove command

Registered by aohuanxuan

For some add/remove commands which support add/remove more than one objects.
We can support to add/remove multi objects in one time.

There is a example for multi add and remove in commands:
consistency group add/remove <volume> [<volume> ...]
the patch link: https://review.openstack.org/#/c/407983/

We have some similar commands, such as:
group add/remove user
image add/remove project
...
(There may be additional in the future)

We can support this kind of commands to add/remove multi objects

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
aohuanxuan
Direction:
Needs approval
Assignee:
aohuanxuan
Definition:
New
Series goal:
None
Implementation:
Unknown
Milestone target:
None

Related branches

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Whiteboard

Gerrit topic: https://review.openstack.org/#q,topic:bp/support-multi-add-remove,n,z

Addressed by: https://review.openstack.org/446848
    Support to add/remove multi users for "group add/remove user"

Addressed by: https://review.openstack.org/449520
    Surport to check multi users by "group check user"

(?)

Work Items

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