Updated openstack/openstack
Project: openstack/nova  868a8a07e068e1b35271ea14d7d05397dffd9de9

Add API schema for v2.1/v3 aggregates API

By defining the API schema, it is possible to separate the validation
code from the API method. The API method can be more simple.
In addition, a response of API validation error can be consistent for
the whole Nova API.

Partially implements blueprint v3-api-schema

Change-Id: I67a1b723f37256e8bdfaf38d9f5ad0a4c4d2e53e