To provide a `baremetal introspection` CLI interface similar to the
existing OSC plugin, this change adds optional support for pulling
commands from ironic-inspector-client.

Change-Id: I61b82af3afdd934ed130d3d700de8ec7423a1328

This changes adds a new command ``baremetal`` that works mostly like
the OSC ``openstack baremetal`` command but does not require OSC and
defaults to no-auth. No changes in existing commands are required,
the existing OSC plugins are pulled in.

Change-Id: Id4895ec37bfb58eb635e5c8519f96f1bdc30c925

The ironic command is dead, long live the OSC baremetal command.

Also removed the json_respose tests, which seemed ot be geared
to checking json returned data on the command line. For ironic
these tests seemed to be very explicit for our CLI where as OSC
should be covering the return data handling, the only real end
effect is field level expectation enforcement in the functional
test... which seems excessive and un-needed.

Story: 1726605
Task: 11974
Depends-on: https://review.opendev.org/677183

Change-Id: I3e3ae416a65d8e01956434ba51bd3187ab001f80

Adds support for a node's ``deploy_step`` (read-only) field.
The deploy step indicates which step is being performed
during the deployment/provisioning of a node.
It is available starting with Bare Metal API version 1.44.

Depends-On: https://review.openstack.org/#/c/579968/
Change-Id: I93ac628bca0822a9a359926389543f7db7fb3e56
Story: #1753128
Task: #22925

Currently, during the ironic shell client construction, if only
os_auth_token and endpoint arguments are passed, custom
HTTPClient class based on requests' sessions is used. This is
unnecessary, as there is admin_token auth type in keystoneauth
that does basically the same, eliminating the need for our
custom implementation. Apart from that, there is a none auth,
which requires only passing the desired endpoint to use, so we
can use it too without having to specify fake token strings
anymore. Let's use these auth methods instead and deprecate
HTTPClient.

Also this patch deprecates a bunch of arguments to client.get_client
function, changing them to the standard keystoneauth naming.

DocImpact
Story: 1696791
Task:  11836
Depends-On: https://review.openstack.org/559116
Change-Id: Ifc7b45d047c8882a41021e1604b74d17eac2e6e8

The functional tests were updated to account for the initial state changed
to "enroll" and for new fields appearing in "show" and "update" responses.

Closes-Bug: #1671145
Change-Id: Ida18541fbbc8064868cac0accb6919de08e9f795

The 'ironic' CLI is being deprecated; it is slated for removal in the S*
release cycle. The 'openstack baremetal' CLI should be used instead.
A message is printed out to that effect and the documentation is
updated to reflect this.

Change-Id: Ie6ac3c6222ec6a6231b9a9cb2949cac56b48967f
Closes-Bug: 1700815

* Update the help string of --ironic-api-version and --os-baremetal-api-version
  to mention the future change.
* Add missing dot to the warning issued by the "ironic" tool.

Partial-Bug: #1671145
Change-Id: Ia03775a318008d0c740ce873ea037309290e33f8

At the Pike PTG, an issue was brought up regarding the use of an old API
version in the ironic tool [0]. It was suggested that we begin printing
a warning whenever the default API version is used and later default
to using the latest API version when --ironic-api-version is unspecified.

This patch adds this warning.

[0] https://etherpad.openstack.org/p/ironic-pike-ptg-operations L30

Change-Id: I80d553e4d3b007d8312931019037f495425b5ea5
Partial-Bug: #1671145

Ironicclient parses subcommand by API version. When providing a
meaningless (e.g 0.9) API version, the error message like 'No
module named v0.shell' is not humanized. This patch provides
the error more friendly.

Change-Id: I1d5130cde8fd60234523701b97b9d29f27380e93
Closes-Bug: #1654186