This change was created using the OpenStack cookiecutter. A few changes
were made to the cookiecutter output, including removing the python
module structure.

Next, the Ansible collection directory structure was initiatilised via:

    ansible-galaxy collection init openstack.kolla

galaxy.yml has been updated to add project metadata.

Some of the basic repository content has been adapted from
kolla-ansible.

The documentation has been cleansed of boilerplate, and the contributor
guide initialised.

CI jobs for docs have been added.

Change-Id: I09ab26b9383d3d415bba735fc0d72e7c88a288b4