Updated openstack/openstack
Project: openstack/tempest  20fdc88a9ef28ac264432123b6d7eb8adf03824b

Add Ironic show driver API test

This patch adds Ironic show driver API.
The spec of this API is below:

GET /v1/drivers/(driver_name)
    param driver_name: Name of driver.
    return: Serialized driver as a dictionary.

Partially implements blueprint missing-baremetal-api-test

Change-Id: I0851546084471a13278f9119602e44b2824e7c0d