* Establish connection through openstacksdk
* Switch from shade to openstacksdk
* fix typo in link to openstacksdk
* remove nova_client usage
* further remove of min_version from openstack modules
* os_project_access: correct example tasks
The example task does not work. Fix it so that it does.
* os_project_access: Remove unused function
The _get_allowed_projects function is not used anywhere,
so we can remove it and be free of nova_client for this
module.