Creates waybill shims from a given command name and docker image

def create(cli, command, docker_id):
        """Creates waybill shims from a given command name and docker image"""
        content = waybill_template.format(command=command,
                                          docker_id=docker_id)
        waybill_dir = cli.get_waybill_dir()
        waybill_filename = os.path.join(waybill_dir, command + '.waybill')
        with open(waybill_filename, 'wb') as filehandle:
            filehandle.write(content)
        cli.log.info('Created waybill {0}'.format(waybill_filename))