Make a local path available to current stacker config.

        Args:
            config (dict): 'local' path config dictionary

def fetch_local_package(self, config):
        """Make a local path available to current stacker config.

        Args:
            config (dict): 'local' path config dictionary

        """
        # Update sys.path & merge in remote configs (if necessary)
        self.update_paths_and_config(config=config,
                                     pkg_dir_name=config['source'],
                                     pkg_cache_dir=os.getcwd())