ManagedClient: Add new option for disabling auto reconnect.

Source/MQTTnet.Extensions.ManagedClient/ManagedMqttClientOptions.cs

@@ -1,5 +1,4 @@
 using System;
-using MQTTnet.Client;
 using MQTTnet.Client.Options;
 using MQTTnet.Server;
 
@@ -9,6 +8,8 @@ namespace MQTTnet.Extensions.ManagedClient
     {
         public IMqttClientOptions ClientOptions { get; set; }
 
+        public bool AutoReconnect { get; set; } = true;
+
         public TimeSpan AutoReconnectDelay { get; set; } = TimeSpan.FromSeconds(5);
 
         public TimeSpan ConnectionCheckInterval { get; set; } = TimeSpan.FromSeconds(1);