Added return-request-id-to-caller function to resources and resource
managers in the following files.

* keystoneclient/v3/projects.py
* keystoneclient/v3/registered_limits.py
* keystoneclient/v3/roles.py
* keystoneclient/v3/limits.py
* keystoneclient/v3/contrib/federation/saml.py

Also made changes in base.py for _put() method so that if
include_metadata is True, the response data should include request_id
instead of returning None as response.

Change-Id: Ifc0ec9a9d666cccfee3b08ac61596a3692307f23
Implements: blueprint return-request-id-to-caller

1. update hacking version to latest
2. fix pep8 failed

Change-Id: Iecc112206633a7e771c5e45547c573d74cce6f67

Use the devstack-tox-functional-consumer job as a parent job to allow us
to remove the custom playbooks and devstack hooks.

Change-Id: Ide6e6da3cbb479b5149fb44f0ef392dc80202910

Added return-request-id-to-caller function tovresources and resource
managers in the following files.

* keystoneclient/v3/contrib/simple_cert.py
* keystoneclient/v3/contrib/endpoint_policy.py
* keystoneclient/v3/contrib/oauth1/access_tokens.py
* keystoneclient/v3/contrib/oauth1/request_tokens.py

Adding request-id to below V3 contrib API's is covered in base patch
[1] but this patch is specifically for V3 API's so covered their test
cases in this patch.

* keystoneclient/v3/contrib/endpoint_filter.py
* keystoneclient/v3/contrib/federation/identity_providers.py
* keystoneclient/v3/contrib/federation/mappings.py
* keystoneclient/v3/contrib/federation/protocols.py
* keystoneclient/v3/contrib/federation/service_providers.py

The methods in the resource class and resource manager return
a 'base.Response' class that has 'request_ids' property.
The caller can get request ids of the callee via that property.

[1] https://review.openstack.org/#/c/329913

Change-Id: I5f90c31020e0dd672a160c7b587f41ba8f2b596c
Co-authored-by: Dinesh Bhor <dinesh.bhor@nttdata.com>
Co-authored-by: Ankit Agrawal <ankit11.agrawal@nttdata.com>
Co-authored-by: Neha Alhat <neha.alhat@nttdata.com>
Implements: blueprint return-request-id-to-caller

We don't check for "enabled" in the region
anywhere thus deprecating it from the create()
and update calls of the v3/region.py. We dont
use it in schema [1] as well as [2].

[1] https://github.com/openstack/keystone/blob/master/keystone/catalog/schema.py#L34
[2] https://github.com/openstack/keystone/blob/master/keystone/catalog/backends/sql.py#L33-L49

Change-Id: I0257d5d42916e3b4d008e592d54eeeebec591633
Partial-Bug: #1615076