* Add junos_command module unit test
* removes cli functions from shared lib * adds cli functions to junos_netconf module * statically pins junos_netconf to cli transport * all other modules use netconf transport * adds command rpc function to junos shared
* updates junos_netconf module * updates junos_command module * updates junos_config module * updates _junos_template module * adds junos_rpc module * adds junos_user module