Add more function mappings for MQTTnet Server.

Source/MQTTnet/Client/Receiving/IMqttApplicationMessageHandler.cs

@@ -4,6 +4,6 @@ namespace MQTTnet.Client.Receiving
 {
     public interface IMqttApplicationMessageHandler
     {
-        Task HandleApplicationMessageAsync(MqttApplicationMessageHandlerContext context);
+        Task HandleApplicationMessageAsync(MqttApplicationMessageReceivedEventArgs eventArgs);
     }
 }

Source/MQTTnet/Client/Receiving/MqttApplicationMessageHandlerContext.cs

@@ -1,15 +0,0 @@
-namespace MQTTnet.Client.Receiving
-{
-    public class MqttApplicationMessageHandlerContext
-    {
-        public MqttApplicationMessageHandlerContext(string senderClientId, MqttApplicationMessage applicationMessage)
-        {
-            SenderClientId = senderClientId;
-            ApplicationMessage = applicationMessage;
-        }
-
-        public string SenderClientId { get; }
-
-        public MqttApplicationMessage ApplicationMessage { get; }
-    }
-}

Source/MQTTnet/Client/Receiving/MqttApplicationMessageHandlerDelegate.cs

@@ -5,9 +5,9 @@ namespace MQTTnet.Client.Receiving
 {
     public class MqttApplicationMessageHandlerDelegate : IMqttApplicationMessageHandler
     {
-        private readonly Func<MqttApplicationMessageHandlerContext, Task> _handler;
+        private readonly Func<MqttApplicationMessageReceivedEventArgs, Task> _handler;
 
-        public MqttApplicationMessageHandlerDelegate(Action<MqttApplicationMessageHandlerContext> handler)
+        public MqttApplicationMessageHandlerDelegate(Action<MqttApplicationMessageReceivedEventArgs> handler)
         {
             if (handler == null) throw new ArgumentNullException(nameof(handler));
 
@@ -18,12 +18,12 @@ namespace MQTTnet.Client.Receiving
             };
         }
 
-        public MqttApplicationMessageHandlerDelegate(Func<MqttApplicationMessageHandlerContext, Task> handler)
+        public MqttApplicationMessageHandlerDelegate(Func<MqttApplicationMessageReceivedEventArgs, Task> handler)
         {
             _handler = handler ?? throw new ArgumentNullException(nameof(handler));
         }
 
-        public Task HandleApplicationMessageAsync(MqttApplicationMessageHandlerContext context)
+        public Task HandleApplicationMessageAsync(MqttApplicationMessageReceivedEventArgs context)
         {
             return _handler(context);
         }