PNG Stalkers Safe Real Attack v8

Changes:
- Window Peek Jester now spawns the attacker if you run into him before 20 seconds.
- Window Peek Jester still spawns the attacker if he stays for 20 seconds.
- Attacking Jester despawns after a player dies, so he does not camp your death spot.
- Creative players are not attacked.
- Survival/Adventure players can be chased and damaged.
- Normal stalkers still use blackout + vanish.

Commands:
/function pngstalksafe:spawn/jester_window_peek
/function pngstalksafe:spawn/jester_attack
/function pngstalksafe:kill_all
/function pngstalksafe:spawn/all
/function pngstalksafe:auto/on
/function pngstalksafe:auto/off
