* Add a test to ensure the proper host is returned when using session_manager
* Add a basic driver test for the validating that the SSMDriver will fail if the plugin is not in the path.
* Add a bunch of hard coded values for testing on port 8081; ssh configs
are set to localhost and 8081
* Add a base drive for communicating with the session manager plugin
* Update step for creating tunnel to actually create SSM session tunnel via driver