Add mob sounds from mobs_animal

mods/ENTITIES/mobs_mc/chicken.lua

@@ -36,7 +36,7 @@ mobs:register_mob("mobs_mc:chicken", {
 	lava_damage = 5,
 	light_damage = 0,
 	sounds = {
-		random = "Chicken1",
+		random = "mobs_chicken",
 		death = "Chickenhurt1",
 		hurt = "Chickenhurt1",
 	},

mods/ENTITIES/mobs_mc/cow.lua

@@ -36,7 +36,7 @@ mobs:register_mob("mobs_mc:cow", {
 	light_damage = 0,
 	fear_height = 3,
 	sounds = {
-		random = "Cow1",
+		random = "mobs_cow",
 		death = "Cowhurt1",
 		damage = "Cowhurt1",
 	},

mods/ENTITIES/mobs_mc/pig.lua

@@ -32,9 +32,9 @@ mobs:register_mob("mobs_mc:pig", {
 	light_damage = 0,
 	fear_height = 3,
 	sounds = {
-		random = "Pig2",
-		death = "Pigdeath",
-		damage = "Pig2",
+		random = "mobs_pig",
+		death = "mobs_pig_angry",
+		damage = "mobs_pig",
 	},
 	animation = {
 		speed_normal = 24,