Hcf Mqtt协议 通讯组件，封装基于MQTTnet的通讯实现

Mqtt.Client 模块

1. 通过nuget引用 Hcf.Mqtt.Client  程序集

> Install-Package HcfNS.Mqtt.Client

2. 在 appsettings.json 中添加如下配置节点

"Hcf": {
    "MqttClient": {
      "ClientId": "127.0.0.1",
      "Server": "127.0.0.1",
      "Port": 1883,
      "UserName": "admin",
      "Password": "password",
      "Timeout": 30, //秒
      "Interval": 10,
      "Topics": []
    }
  }

Mqtt.Server.AspNetCore 模块

按照如下配置方式使用：

1. 通过nuget引用 Hcf.Mqtt.Server 程序集

> Install-Package HcfNS.Mqtt.Server

2. 在 appsettings.json 中添加如下配置节点

"Hcf": {
	  "MqttServer": {
		"Ip": "127.0.0.1",
		"Port": 1883,
		"Timeout": 30,//单位：秒
		"UserName": "admin",
		"Password": "passwod"
	  },
	  "Kestrel": {
		  "Port": 5000,
		  //"MaxRequestBufferSize": 33554432, //32M
	  }
  }