* updates eos modules to use persistent connection socket
* removes split eos shared module and combines into one
* adds singular eos doc frag (eos_local to be removed after module updates)
* updates unit test cases
* returns support for prompt/response over cli
* now sends native dict instead of str command
* fixes issue with run_commands() in ios to jsonify request
* updates unit test cases
* provides declarative resource for configuring eos system parameters
* supports network_cli connection plugin only
* adds unit tests for module using mock interfaces
* update eos_config to use eapi exclusively and remove cli transport
* add unit test cases for eos_config
* updates action plugin to handle both eapi and network_cli connections