Add parent_id to create_project

Now keystone supports the creation of projects
hierarchies, this patch adds the parent_id field
in the project client and adds a simple test to
check it.

As of Mitaka, if not provided, the parent_id must
point to the root project of the hierarchy (its
domain).

Change-Id: Ie69dae09c2b42e825e9d51abf158fc14788387d1
2 files changed