adds forced scream emote after warrior lunge (#5273)

# About the pull request

~~Created a new emote called panic, it's very similar to scream and
inherits virtually all of its properties and methods however the ogg
files are of course different.~~
Added a scream emote whenever a warrior lunges and grabs a human mob,
also added one more ogg audio file to the scream list.

# Explain why it's good for the game

~~Initially I just wanted to add a forced a scream emote whenever a
warrior lunged at a human mob, but I sort of found the existing scream
ogg sounds to be kind of lack luster. However, they are iconic in their
own right and removing them or modifying them would be a detriment to
the game. I chose to create a new emote entirely rather than adding
audio files to the existing one. The emote which is similar to scream
but the sounds are more "authentic" and erm, immersive. So far it's just
two sounds for each gender but this will be changed once I find more
audio files to add.~~

Warrior lunges at marines should be a traumatic experience that gives
them ptsd.

# Changelog

:cl:
add: human mobs now scream whenever they get lunged at by a warrior.
soundadd: added a new scream sound and put it into the existing scream
list.
/:cl:

code/game/sound.dm

@@ -344,7 +344,7 @@
 				S = pick('sound/voice/alien_queen_command.ogg','sound/voice/alien_queen_command2.ogg','sound/voice/alien_queen_command3.ogg')
 			// Human
 			if("male_scream")
-				S = pick('sound/voice/human_male_scream_1.ogg','sound/voice/human_male_scream_2.ogg','sound/voice/human_male_scream_3.ogg','sound/voice/human_male_scream_4.ogg',5;'sound/voice/human_male_scream_5.ogg',5;'sound/voice/human_jackson_scream.ogg',5;'sound/voice/human_ack_scream.ogg')
+				S = pick('sound/voice/human_male_scream_1.ogg','sound/voice/human_male_scream_2.ogg','sound/voice/human_male_scream_3.ogg','sound/voice/human_male_scream_4.ogg',5;'sound/voice/human_male_scream_5.ogg',5;'sound/voice/human_jackson_scream.ogg',5;'sound/voice/human_ack_scream.ogg','sound/voice/human_male_scream_6.ogg')
 			if("male_pain")
 				S = pick('sound/voice/human_male_pain_1.ogg','sound/voice/human_male_pain_2.ogg','sound/voice/human_male_pain_3.ogg',5;'sound/voice/tomscream.ogg',5;'sound/voice/human_bobby_pain.ogg',5;'sound/voice/human_tantrum_scream.ogg', 5;'sound/voice/human_male_pain_rare_1.ogg')
 			if("male_fragout")

code/modules/mob/living/carbon/xenomorph/abilities/warrior/warrior_powers.dm

@@ -37,6 +37,8 @@
 
 	if (xeno.Adjacent(carbon))
 		xeno.start_pulling(carbon,1)
+		if(ishuman(carbon))
+			INVOKE_ASYNC(carbon, TYPE_PROC_REF(/mob, emote), "scream")
 	else
 		xeno.visible_message(SPAN_XENOWARNING("[xeno]'s claws twitch."), SPAN_XENOWARNING("Our claws twitch as we lunge but are unable to grab onto our target. Wait a moment to try again."))