Centered Engineer Menus

[TheRSO]

Not sure if you want this pr here or as an option in the tf2 hud editor, but here's some repositioning I whipped up if you ever need.

Edit: I forgot to check if healer id would conflict

[CriticalFlaw]

I like the idea (I believe it was centered in earlier versions of flawhud too) but I think it would look better if when centered all elements were horizontally aligned in one line. That way it will take up less space.