YD Zombies

This long overdue update addresses several bugs and exploits, and tweaks gameplay for each map slightly.

Anomaly Takedown:

-Achievement hall fixes

     1) Changed chest count for challenge from 69 to 71

     2) Made completion format more colorblind-friendly

     3) Disabled husk adds spawning in the lore room

- Exploit removal

     1) Removed trapdoors in gas station to improve zombie pathing

     2) Removed iron doors in gas station to disallow zombie "boosting"

     3) Removed more glass panes in the bank to prevent zombies from becoming stuck

-Miscellaneous fixes

     1) Added refill function to  back farmfield chest

     2) Removed bed from ambulance to prevent player from resetting spawn

     3) Fixed typo to give husk adds resistance status effect

-Gameplay improvements

     1) Reworked loot tables to reduce chances of empty chests, lowered chance of armor loot, and tweaked percentage chances for specific ammo types and consumables

     2) Changed armor stands in pregame lobby to NPCs

Infiltration:

- Added more hints for the oblivious

- Changed quest completion from three syringes to one syringe

- Made slight improvements to NPCs and reworked quest dialogue

Special thanks to JulianElf and Lermonix for the helpful suggestions!