Add more pacakges.

Source/MQTTnet/Protocol/MqttPubCompReasonCode.cs

@@ -0,0 +1,8 @@
+namespace MQTTnet.Protocol
+{
+    public enum MqttPubCompReasonCode
+    {
+        Success = 0,
+        PacketIdentifierNotFound = 146
+    }
+}

Source/MQTTnet/Protocol/MqttPubRecReasonCode.cs

@@ -0,0 +1,15 @@
+namespace MQTTnet.Protocol
+{
+    public enum MqttPubRecReasonCode
+    {
+        Success = 0,
+        NoMatchingSubscribers = 16,
+        UnspecifiedError = 128,
+        ImplementationSpecificError = 131,
+        NotAuthorized = 135,
+        TopicNameInvalid = 144,
+        PacketIdentifierInUse = 145,
+        QuotaExceeded = 151,
+        PayloadFormatInvalid = 153
+    }
+}

Source/MQTTnet/Protocol/MqttPubRelReasonCode.cs

@@ -0,0 +1,8 @@
+namespace MQTTnet.Protocol
+{
+    public enum MqttPubRelReasonCode
+    {
+        Success = 0,
+        PacketIdentifierNotFound = 146
+    }
+}

Source/MQTTnet/Protocol/MqttRetainHandling.cs

@@ -0,0 +1,9 @@
+namespace MQTTnet.Protocol
+{
+    public enum MqttRetainHandling
+    {
+        SendAtSubscribe = 0,
+        SendAtSubscribeIfNewSubscriptionOnly = 1,
+        DoNotSendOnSubscribe = 2
+    }
+}

Source/MQTTnet/Protocol/MqttSubscribeReasonCode.cs

@@ -0,0 +1,18 @@
+namespace MQTTnet.Protocol
+{
+    public enum MqttSubscribeReasonCode
+    {
+        GrantedQoS0 = 0,
+        GrantedQoS1 = 1,
+        GrantedQoS2 = 2,
+        UnspecifiedError = 128,
+        ImplementationSpecificError = 131,
+        NotAuthorized = 135,
+        TopicFilterInvalid = 143,
+        PacketIdentifierInUse = 145,
+        QuotaExceeded = 151,
+        SharedSubscriptionsNotSupported = 158,
+        SubscriptionIdentifiersNotSupported = 161,
+        WildcardSubscriptionsNotSupported = 162
+    }
+}