detail quota usage only return real usage

[Chaoyi Huang]

get a tenant quota usage by himself

curl -H "Content-Type: application/json" -H "X-Auth-Token: $kb_token" -X GET http://$kb_ip_addr:8118/v1.0/$tenant_id/os-quota-sets/$tenant_id/detail

"GET /v1.0/7fe8e60a9c0845b3887db881a862e604/os-quota-sets/7fe8e60a9c0845b3887db881a862e604/detail (7fe8e60a9c0845b3887db881a862e604 is demo project-id)

Then the result only shows usage without limit: {"quota_set": {"security_group_rule": 4, "security_group": 1}}

To ease of use, the global limit should also be returned at the same time, and return 0 usage if quota is used.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/359944

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/359944
Committed: https://git.openstack.org/cgit/openstack/kingbird/commit/?id=8fbf914c4422db5daa45ae2ff58857e89372dcb3
Submitter: Jenkins
Branch: master

commit 8fbf914c4422db5daa45ae2ff58857e89372dcb3
Author: Ashish Singh <email address hidden>
Date: Wed Aug 24 20:35:36 2016 +0530

    Fix for the detail quota usage bug

    Currently, tenant quota usage API only returns
    the quotas which are used.

    Have modified such that it returns
    - Limits for that tenant
    - Usage of the quota resources
    - '0' in place of Unused quota resouces

    Eg:
    {'quota_set'
        {
            'usage' : <project_usage>,
            'limits': <project_limit>
        }
    }

    Change-Id: Ib5cab1f420154ed37db0e70a537f552da8243ddf
    Closes-Bug: #1610613