回传数据优化处理

当推理计算完成后，需要将推理结果或者推理结束信号发送给Host端，如果在推理Engine内部调用SendData回传数据到Host端，将会消耗推理Engine的时间。建议单独开一个专门负责回传数据的Engine（例如：DataOptEngine），当推理结束后，推理Engine将处理数据透传给DataOptEngine，由DataOptEngine负责将数据回传给Host侧，再由Host侧的Engine（例如：DstEngine）负责接收传过来的推理结果。

//Device侧的DataOptEngine负责将数据回传给Host侧
HIAI_IMPL_ENGINE_PROCESS("DataOptEngine", DataOptEngine, 1)
{
    HIAI_StatusT hiaiRet = HIAI_OK;
    if (arg0 == nullptr) {
        HIAI_ENGINE_LOG(HIAI_INVALID_INPUT_MSG, "get inference result timeout");
        return HIAI_INVALID_INPUT_MSG;
    }
    hiaiRet = SendData(0, "EngineTransNewT", arg0);
}
// Host侧的DstEngine负责接收从Device侧传过来的推理结果
HIAI_IMPL_ENGINE_PROCESS("DstEngine", DstEngine, 1)
{
    HIAI_StatusT ret = HIAI_OK;
    if (nullptr != arg0) {
        printf("dest engine had receive data already\n");
        std::shared_ptr<std::string> result =
            std::static_pointer_cast<std::string>(arg0);
        ret = SendData(0, "string", result);
        if (HIAI_OK != ret) {
            HIAI_ENGINE_LOG(ret, "DstEngine SendData to recv failed");
            return ret;
        }
    }
    else {
        HIAI_ENGINE_LOG(HIAI_INVALID_INPUT_MSG, "DestEngine Fail to receive data");
        printf("destengine do not receive data arg0 is null\n");
        return HIAI_INVALID_INPUT_MSG;
    }
    return HIAI_OK;
}