Desouls Hivelord (#78213)

## About The Pull Request


![dreammaker_RJz4brjobM](https://github.com/tgstation/tgstation/assets/7483112/e5e4a3e9-ea6b-47f9-887c-3339d24d3fa8)

Replaces the sprite of the hivelord with a new one, in my continuing
quest to annihilate the old asteroid mob sprites.
A (never completed) asteroid mob resprite was actually my first PR, this
one is my 200th.
I am also planning on fucking with basic mob versions of these mobs some
time but the sprites can be atomised out.

In addition to replacing the old-ass MSPaint sprites, this PR also adds
a short death animation effect to the hivelord brood (from hivelords or
legions) which looks nicer than them just vanishing instantly upon
death.

Look at this video for an example of the animation:
https://www.youtube.com/watch?v=cKaskN5-y2A

## Why It's Good For The Game

Looks nicer.

## Changelog

🆑
image: Hivelords have a new sprite.
image: Hivelord and Legion brood have a death animation.
/🆑

code/game/objects/effects/temporary_visuals/miscellaneous.dm

@@ -652,3 +652,31 @@
 /obj/effect/temp_visual/crit/Initialize(mapload)
 	. = ..()
 	animate(src, pixel_y = pixel_y + 16, alpha = 0, time = duration)
+
+/// Plays a dispersing animation on hivelord and legion minions so they don't just vanish
+/obj/effect/temp_visual/hive_spawn_wither
+	name = "withering spawn"
+	duration = 1 SECONDS
+
+/obj/effect/temp_visual/hive_spawn_wither/Initialize(mapload, atom/copy_from)
+	if (isnull(copy_from))
+		. = ..()
+		return INITIALIZE_HINT_QDEL
+	icon = copy_from.icon
+	icon_state = copy_from.icon_state
+	pixel_x = copy_from.pixel_x
+	pixel_y = copy_from.pixel_y
+	duration = rand(0.5 SECONDS, 1 SECONDS)
+	var/matrix/transformation = matrix(transform)
+	transformation.Turn(rand(-70, 70))
+	transformation.Scale(0.7, 0.7)
+	animate(
+		src,
+		pixel_x = rand(-5, 5),
+		pixel_y = -5,
+		transform = transformation,
+		color = "#44444400",
+		time = duration,
+		flags = ANIMATION_RELATIVE,
+	)
+	return ..()