Expose CurrentEndPoint on CMClient

Fixes #775
Fixes #487

SteamKit2/SteamKit2/Steam/CMClient.cs

@@ -41,11 +41,17 @@ public abstract class CMClient : ILogContext
         public SmartCMServerList Servers => Configuration.ServerList;
 
         /// <summary>
-        /// Returns the the local IP of this client.
+        /// Returns the local IP of this client.
         /// </summary>
         /// <returns>The local IP.</returns>
         public IPAddress? LocalIP => connection?.GetLocalIP();
 
+        /// <summary>
+        /// Returns the current endpoint this client is connected to.
+        /// </summary>
+        /// <returns>The current endpoint.</returns>
+        public EndPoint? CurrentEndPoint => connection?.CurrentEndPoint;
+
         /// <summary>
         /// Gets the public IP address of this client. This value is assigned after a logon attempt has succeeded.
         /// This value will be <c>null</c> if the client is logged off of Steam.