os-quota-sets should show 'in use' and 'Reserved'

[Tiantian Gao]

As https://blueprints.launchpad.net/nova/+spec/apis-for-nova-manage described, nova-api contains all function of nova-manage.

nova-manage shows `in_use` and `reserved` like below.

$ nova-manage project quota --project aa41b3c3106045b98320a0c7bb4f819f
Quota Limit In Use Reserved
metadata_items 128 0 0
injected_file_content_bytes 10240 0 0
ram 51200 0 0
floating_ips 10 1 0
security_group_rules 20 0 0
instances 10 0 0
key_pairs 100 0 0
injected_files 5 0 0
cores 20 0 0
fixed_ips unlimited 0 0
injected_file_path_bytes 255 0 0
security_groups 10 0 0

But nova-api only show `limit` like below.
$ nova quota-show --tenant aa41b3c3106045b98320a0c7bb4f819f
+-----------------------------+-------+
| Property | Value |
+-----------------------------+-------+
| metadata_items | 128 |
| injected_file_content_bytes | 10240 |
| ram | 51200 |
| floating_ips | 10 |
| key_pairs | 100 |
| instances | 10 |
| security_group_rules | 20 |
| injected_files | 5 |
| cores | 20 |
| fixed_ips | -1 |
| injected_file_path_bytes | 255 |
| security_groups | 10 |
+-----------------------------+-------+

I think nova-api should show `in_use` and `Reserved` as nova-manage do.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/32303

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/32303
Committed: http://github.com/openstack/nova/commit/8b388f05195cfe6eec34ce9d52781d9f5b88ed66
Submitter: Jenkins
Branch: master

commit 8b388f05195cfe6eec34ce9d52781d9f5b88ed66
Author: gtt116 <email address hidden>
Date: Tue Jul 30 16:34:18 2013 +0800

    [v3] Show detail of an quota in API os-quota-sets

    nova-manage shows `in_use`, `reserved` including `limit` of a quota.
    So create a new API named `detail` to do the same with nova-manage.

    The new URL is like :/v3/os-quota-sets/1234/detail.

    Fix bug: #1183870

    DocImpact

    Change-Id: Ic53a68acf0f3f3184c7a900360343bb576560f46

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/64017