Add a switch to keeper.exe to start the game in a "diagnostic"

[samuellsk]

to see which layout is causing slowdown during generating map,

cause sometimes (i guess 1 out of 20 ?) game freezes for like minute what i suspect is a generations of random_layouts and have no idea which layout is causing it...

would be great if the "switch" --diag ? would show some popup windows whatever which layout is it currently trying to generate

thank you