Mouse fluff and mouse rest

Adds Lumi's mechanical mouse fluff (at this stage, it is admin spawnable only) and gives NPC mice the ability to rest using the proper sprite.

code/modules/mob/living/simple_animal/friendly/mouse.dm

@@ -5,6 +5,7 @@
 	icon_state = "mouse_gray"
 	icon_living = "mouse_gray"
 	icon_dead = "mouse_gray_dead"
+	icon_resting = "mouse_gray_sleep"
 	speak = list("Squeek!","SQUEEK!","Squeek?")
 	speak_emote = list("squeeks","squeaks","squiks")
 	emote_hear = list("squeeks","squeaks","squiks")
@@ -69,6 +70,7 @@
 	icon_state = "mouse_[mouse_color]"
 	icon_living = "mouse_[mouse_color]"
 	icon_dead = "mouse_[mouse_color]_dead"
+	icon_resting = "mouse_[mouse_color]_sleep"
 	desc = "It's a small [mouse_color] rodent, often seen hiding in maintenance areas and making a nuisance of itself."
 
 /mob/living/simple_animal/mouse/proc/splat()
@@ -121,7 +123,7 @@
 
 	if(on_CD == 1)
 		return
-	
+
 	switch(act)
 		if("squeak")
 			message = "<B>\The [src]</B> squeaks!"
@@ -207,4 +209,16 @@
 
 /mob/living/simple_animal/mouse/blobinfected/get_scooped(mob/living/carbon/grabber)
 	to_chat(grabber, "<span class='warning'>You try to pick up [src], but they slip out of your grasp!</span>")
-	to_chat(src, "<span class='warning'>[src] tries to pick you up, but you wriggle free of their grasp!</span>")
+	to_chat(src, "<span class='warning'>[src] tries to pick you up, but you wriggle free of their grasp!</span>")
+
+/mob/living/simple_animal/mouse/fluff/clockwork
+	name = "Chip"
+	real_name = "Chip"
+	mouse_color = "clockwork"
+	icon_state = "mouse_clockwork"
+	response_help  = "pets"
+	response_disarm = "gently pushes aside"
+	response_harm   = "stamps on"
+	gold_core_spawnable = CHEM_MOB_SPAWN_INVALID
+	can_collar = 0
+	butcher_results = list(/obj/item/stack/sheet/metal = 1)