Added Comments

Firebird2D.EventPipelines/EventArguments/FirebirdKeyEventArgs.cs

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+using SFML.Window;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Firebird2D.EventPipelines.EventArguments
+{
+    public class FirebirdKeyEventArgs : KeyEventArgs
+    {
+        public InputEventType InputEventType { get; private set; }
+
+        public FirebirdKeyEventArgs(KeyEvent e, InputEventType t) : base(e)
+        {
+            InputEventType = t;
+        }
+    }
+}