* removes connection functions refactored into connection
* updates ComplexDict and ComplexList objects to use with AnsibleModule
* updates modules to add new argument to ComplexList & ComplexDict
* 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
