In order for the config to be returned with vpn passwords, the get_config()
method now supports a keyword arg include=passwords to return the desired
configuration. This replaces the show_command argument
* Clean up EOS, IOS, IOS-XR, Junos, NX-OS, and OpenSwitch
* Cleanup net* files
* Re-add NetworkModule import to network module_utils files
This will trick modules into importing code from module_utils code, thus
including it in the final Ansiballz zipfile.
* Give asa a look over, too
* add authorize() method to handle authorization
* move terminal commands to after authorization completed
* add save_config() method to handling writing config to disk
* fix minor issues with get_config
* adds action plugin asa_config