Added the TargetLinkUrl to MessageEvents

Author: zythra

src/SparkPost/MessageEvent.cs

@@ -326,7 +326,13 @@ public BounceClass BounceClassEnum
         /// </summary>
         public string RemoteAddress { get; set; }
 
-        public override string ToString()
+		/// <summary>
+		/// Not documented.
+		/// "remote_addr": "http://www.domain.com",
+		/// </summary>
+		public string TargetLinkUrl { get; set; }
+
+		public override string ToString()
         {
             return $"{TypeEnum} from {FriendlyFrom} to {RecipientTo}";
         }

src/SparkPost/MessageEvents.cs

@@ -135,8 +135,9 @@ private static IEnumerable<MessageEvent> ConvertResultsToAListOfMessageEvents(dy
                     Transactional = result.transactional,
                     RemoteAddress = result.remote_addr,
                     Metadata = metadata,
-                    Tags = tags
-                });
+                    Tags = tags,
+					TargetLinkUrl = result.target_link_url
+				});
             }
             return messageEvents;
         }