Function batch_system::create_system

pub fn create_system<N: Fsm, C: Fsm>(
    cfg: &Config, 
    sender: LooseBoundedSender<C::Message>, 
    controller: Box<C>
) -> (BatchRouter<N, C>, BatchSystem<N, C>)

Create a batch system with the given thread name prefix and pool size.

sender and controller should be paired.