Updated openstack/openstack
Project: openstack/nova  7043095ac697ae2ef2e0e7d646bbff39ede69dc8

Add API schema for v2.1 "rebuild a server" API

Some v2.1 APIs(create/update/rebuild server) contains the API
extension feature, it searches extension methods with its method
name and operates them automatically.
It is necessary to change the API schemas also automatically based
on the API extension loading condition, because the API extensions
add API parameters.

This patch adds API schema extensions which are implemented with the
same mechanism (stevedore library) as the API extension for "rebuild
a server" extensions.

Partially implements blueprint v3-api-schema

Change-Id: Ibfdd99966335d062cde4cc1d9ab3b63bc82ed0b6