Copyright for python-zunclient source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: python-zunclient
Source: https://docs.openstack.org/zun/latest/

Files: *
Copyright: (c) 2010-2016, OpenStack Foundation
           (c) 2010, Jacob Kaplan-Moss
           (c) 2012, Grid Dynamics
           (c) 2015-2016, Mirantis, Inc.
           (c) 2015, IBM Corp.
           (c) 2013, Hewlett-Packard Development Company, L.P.
           (c) 2015, NEC Corporation.
           (c) 2015, Thales Services SAS
           (c) 2013, Alessio Ababilov
           (c) 2014, The Cloudscaling Group, Inc.
           (c) 2011, Nebula, Inc.
           (c) 2013, Spanish National Research Council.
           (c) 2012, Red Hat, Inc.
           (c) 2017, Arm Limited.
License: Apache-2

Files: debian/*
Copyright: (c) 2017, Thomas Goirand 
           (c) 2018, Michal Arbet http://www.apache.org/licenses/LICENSE-2.0
 .
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 .
 On Debian-based systems the full text of the Apache version 2.0 license
 can be found in /usr/share/common-licenses/Apache-2.0.