Adds "Pause after first step" functionality to ventcrawling
Created by: BobdaBiscuit
Since seeing xenos etc come flying out of vents unintentionally is hilarious and navigating shit as a borer with high ping is horrifyingly terrible I've added in https://github.com/d3athrow/vgstation13/pull/12846 for ventcrawling.
Same deal as before, if the preference is set it makes you pause for a moment after your first move, then you go whizzing off as usual.
Default behaviour remains the same.