* updates all ios modules to support persistent socket
* adds ios action plugin to connect to device
* adds exec_command() to ios shared module
* fixes ios_config and ios_template local action
* update all unit test cases
* adds base test module for ios module testing
* updates the deprecated ios_template module to use network_cli
* adds unit test cases for ios_template
* adds check for provider argument and displays warning message
Adds a new local action ios_config for working with cisco ios configuration
files. Implements the common net_confing local action
Note this plugin was refactored from ios_config to ios_template