Add baremetal API tests about console

This patch set adds tests og below Ironic APIs:

* GET /v1/nodes/(node_uuid)/states/console
* PUT /v1/nodes/(node_uuid)/states/console

Partially Implements blueprint: missing-baremetal-api-test

Change-Id: I019534f970d7c7bae8ccc3799cfac48116c81510
Merge "Add baremetal API tests about console"