MqttRpcDeviceRead 方法

读取支持Hsl特性的数据内容，该特性为HslDeviceAddressAttribute，详细参考api文档说明，或是官网的详细文档
Read the data content of the Hsl attribute. The attribute is HslDeviceAddressAttribute, please refer to the api documentation for details.

批量读取字节数组信息，需要指定地址和长度，返回原始的字节数组
Batch read byte array information, need to specify the address and length, return the original byte array

从MQTT服务器同步读取数据，将payload发送到服务器，然后从服务器返回相关的数据，支持数据发送进度报告，服务器执行进度报告，接收数据进度报告操作
Synchronously read data from the MQTT server, send the payload to the server, and then return relevant data from the server, support data transmission progress report, the server executes the progress report, and receives the data progress report