Add mouse event handling and improve key event handling for controls and windows

UI/GUI/UIEelements/Control.cs

@@ -1,3 +1,5 @@
+using Cosmos.Kernel.System.Keyboard;
+
 using System.Drawing;
 
 namespace RemSox.UI.GUI.UIEelements;
@@ -15,4 +17,12 @@ public abstract class Control(string type) : UIElement(type)
         get;
         set => SetProperty(nameof(Size), ref field, value);
     }
+
+    public virtual void HandleMouseEvent(MouseEvent mouseEvent)
+    {
+    }
+
+    public virtual void HandleKeyEvent(KeyEvent keyEvent)
+    {
+    }
 }