* Rewrite the docker_plugin module to use the low-level client from Docker SDK for Python.
* Rewrite to no longer use the Docker SDK for Python.
* Remove Docker SDK for Python version from tests.
* Remove support for Ansible 2.9 and ansible-base 2.10.
* Remove Ansible 2.9 compatiblity code.
* Remove docker-compose from EE.
* Drop support for Python 2.6. Stop advertising docker-py for Python 2.6.
* Drop support for API versions 1.20 to 1.24.
* Fix condition.
* New module docker-plugin with integration_tests
* Fix sanity test
* Changes made as per the reviewer suggested
* Fix check-mode and test directory
* Fix Sanity
* fix integration
* fix integration
* fix integration
* fix integration