added benchmark function

added .txt for benchmark results
fixed generating level message

Scripts/Main.cs

@@ -51,6 +51,10 @@ public partial class Main : Node2D {
 
 				mLevel.WritePixel<Dirt>((int)mappedX, (int)mappedY, BrushSize);
 			}
-		} else base._UnhandledInput(@event);
+		} else if (@event is InputEventKey keyEvent && keyEvent.Pressed) {
+			if (keyEvent.Keycode == Key.F9)
+				mLevel.StartBenchmark();
+		}
+		else base._UnhandledInput(@event);
 	}
 }