Add special Exception for JRPC Timeouts

templates/CSharp/JRpcClient.cs

@@ -103,7 +103,7 @@ public class JRpcClient
          else
          {
             this.Requests.Remove(id);
-            throw new JRpcException("Request Timeout");
+            throw new JRpcTimeoutException();
          }
 
       }
@@ -149,3 +149,8 @@ public class JRpcException : Exception
 {
    public JRpcException(string message) : base(message) { }
 }
+
+public class JRpcTimeoutException : JRpcException
+{
+   public JRpcTimeoutException() : base("Request Timeout") { }
+}