* Add command_timeout timer that defines the amount
of time to wait for a command or RPC call before
timing out.
* Remove connect_retries and connect_interval configuration
varaible and replace it with connect_retry_timeout to control
the timeout value of connection to local scoket.
* Make required changes to netowrk action plugins and relevant
network files in module_utils.
* Required documentation changes.
* Adding ciscowlc_command module and unit tests.
* Adding __init__.py for unit test.
* Fixing PEP8 W503.
* Renaming module from ciscowlc_command to aire_command.
* Renaming aire_command to aireos_command.