Fire update (#602)

* fire spread fixes and optimization

* fix liquid drops nefty and suffix

* some sharedization

* melee fire extinguish

* clean up fireSpread system

* caution popup

* cuffable zombies

* fix zombie AI

* lighter

* torch integration attempt

* fix torch igniting

* yml tweaks

* bonus flammable damage

Content.Server/Audio/AmbientSoundSystem.cs

@@ -1,6 +1,7 @@
 using Content.Server._CP14.Temperature;
 using Content.Server.Power.Components;
 using Content.Server.Power.EntitySystems;
+using Content.Shared._CP14.Temperature;
 using Content.Shared.Audio;
 using Content.Shared.Mobs;
 using Content.Shared.Power;