Ports dogborg sprites from RP to main

Includes sit sprites, rest style verb, changing where sit sprites update in robot update_icons so that eye layers get cut properly when resting, etc.

code/modules/mob/living/silicon/robot/robot.dm

@@ -108,6 +108,9 @@
 	buckle_lying = FALSE
 	var/static/list/can_ride_typecache = typecacheof(/mob/living/carbon/human)
 
+	var/sitting = 0
+	var/bellyup = 0
+
 /mob/living/silicon/robot/get_cell()
 	return cell
 
@@ -173,6 +176,7 @@
 	diag_hud_set_borgcell()
 
 	verbs += /mob/living/proc/lay_down //CITADEL EDIT gimmie rest verb kthx
+	verbs += /mob/living/silicon/robot/proc/rest_style
 
 //If there's an MMI in the robot, have it ejected when the mob goes away. --NEO
 /mob/living/silicon/robot/Destroy()
@@ -657,13 +661,6 @@
 		add_overlay("[module.sleeper_overlay]_g[sleeper_nv ? "_nv" : ""]")
 	if(sleeper_r && module.sleeper_overlay)
 		add_overlay("[module.sleeper_overlay]_r[sleeper_nv ? "_nv" : ""]")
-	if(module.dogborg == TRUE)
-		if(resting)
-			cut_overlays()
-			icon_state = "[module.cyborg_base_icon]-rest"
-		else
-			icon_state = "[module.cyborg_base_icon]"
-
 	if(stat == DEAD && module.has_snowflake_deadsprite)
 		icon_state = "[module.cyborg_base_icon]-wreck"
 
@@ -697,6 +694,18 @@
 		add_overlay(head_overlay)
 	update_fire()
 
+	if(module.dogborg == TRUE)
+		if(resting)
+			if(sitting)
+				icon_state = "[module.cyborg_base_icon]-sit"
+			if(bellyup)
+				icon_state = "[module.cyborg_base_icon]-bellyup"
+			else if(!sitting && !bellyup)
+				icon_state = "[module.cyborg_base_icon]-rest"
+			cut_overlays()
+		else
+			icon_state = "[module.cyborg_base_icon]"
+
 /mob/living/silicon/robot/proc/self_destruct()
 	if(emagged)
 		if(mmi)
@@ -1242,3 +1251,19 @@
 			connected_ai.aicamera.stored[i] = TRUE
 		for(var/i in connected_ai.aicamera.stored)
 			aicamera.stored[i] = TRUE
+
+/mob/living/silicon/robot/proc/rest_style()
+	set name = "Switch Rest Style"
+	set category = "Robot Commands"
+	set desc = "Select your resting pose."
+	sitting = 0
+	bellyup = 0
+	var/choice = alert(src, "Select resting pose", "", "Resting", "Sitting", "Belly up")
+	switch(choice)
+		if("Resting")
+			return 0
+		if("Sitting")
+			sitting = 1
+		if("Belly up")
+			bellyup = 1
+	update_icons()