Lots of fixes

-possibly fixed navmesh sometimes not generating (making SCPs not move) -fixed SCP-1499 teleporting -fixed class d ragdolls falling from the ceiling in 173room after the intro -fixed breach sounds heard everywhere on save load -fixed button sounds -fixed 420-J not spawning from the console -fixed 096 room levers -fixed broken 049room door being openable -fixed vest culling and inventory-able