added death animations for Skeleton and Revenant

data/units/Revenant.cfg

@@ -20,6 +20,18 @@ get_hit_sound=skeleton-hit.wav
 	pierce=40
 	impact=120
 	[/resistance]
+	[death]
+		[frame]
+		begin=0
+		end=200
+		image=undead-revenant-dying.png
+		[/frame]
+		[frame]
+		begin=200
+		end=400
+		image=undead-revenant-dying-2.png
+		[/frame]
+	[/death]
 	[attack]
 	name=axe
 	type=blade

data/units/Skeleton.cfg

@@ -15,6 +15,19 @@ cost=15
 usage=fighter
 unit_description= _ "Skeletons are warriors who have been slain in battle and brought back by dark magics. Like all undead, they are especially vulnerable to fire and holy spells, but resistant to bladed weapons."
 get_hit_sound=skeleton-hit.wav
+	[death]
+		[frame]
+		begin=0
+		end=200
+		image=undead-skeleton-dying.png
+		[/frame]
+		[frame]
+		begin=200
+		end=400
+		image=undead-skeleton-dying-2.png
+		[/frame]
+	[/death]
+
 	[resistance]
 	blade=60
 	pierce=40