Adds Deafened Feedback, enhances looping sounds further

Adds deafened ear ring that plays any time you're deafened, and fades back in once you can hear again.

Example of deafened feedback [here](https://streamable.com/8s8vlu). 

Worry not, if you're deafened via mutation or other, you'll simply go deaf, and only hear the fade-in once you regain hearing. 

It will also only play **once** when you are deafened. Further deafening effects while you are already deaf will not force you to hear it again.

modular_chomp/code/modules/reagents/reagents/food_drinks.dm

@@ -223,6 +223,7 @@
 			M.eye_blurry = max(M.eye_blurry, 30)
 			if(prob(20))
 				M.ear_deaf = max(M.ear_deaf, 4)
+				M.deaf_loop.start() // CHOMPStation Add: Ear Ringing/Deafness
 				M.Confuse(2)
 			else
 				M.Weaken(2)