Correctly handle conflicting lifts being triggered

[zml2008]

Currently when a down lift is being triggered on a lift area that is moving up (or the other way around), the lifts and their passengers are frozen in place or lift splitting occurs. I want to have the LiftRunner handle conflicts by stopping the lift triggered first.

[zml2008]

I believe this is mostly fixed, however if a player drops an item on a lift trigger and steps on a trigger moving the same lift in another direction, the lift will be frozen in place until the item dies. imo the best solution to this is making player triggers have a higher priority. This is however not asshole-proof, then again this is a video game.