Add: data parameter in Window::Close method.

This allows passing data when closing a window, e.g. to indicate how it was closed.

src/console_gui.cpp

@@ -129,7 +129,7 @@ struct IConsoleWindow : Window
 		this->line_offset = GetStringBoundingBox("] ").width + WidgetDimensions::scaled.frametext.left;
 	}
 
-	void Close() override
+	void Close([[maybe_unused]] int data = 0) override
 	{
 		_iconsole_mode = ICONSOLE_CLOSED;
 		VideoDriver::GetInstance()->EditBoxLostFocus();