Alt-clicking descriptions when examining (#30988)

* Adds what alt-clicking does into examine-messages.

* whoops fix

* AI holopad examine remove

* Fixed cigarette pack alt-clicking.

* Spear alt-click-message set to show only if explosive lance.

code/game/objects/structures/extinguisher.dm

@@ -10,6 +10,10 @@
 	var/obj/item/extinguisher/stored_extinguisher
 	var/opened = 0
 
+/obj/structure/extinguisher_cabinet/examine(mob/user)
+	..()
+	to_chat(user, "<span class='notice'>Alt-click to [opened ? "close":"open"] it.</span>")
+
 /obj/structure/extinguisher_cabinet/New(loc, ndir, building)
 	..()
 	if(building)

code/game/objects/structures/reflector.dm

@@ -13,6 +13,10 @@
 	var/buildstacktype = /obj/item/stack/sheet/metal
 	var/buildstackamount = 0
 
+/obj/structure/reflector/examine(mob/user)
+	..()
+	to_chat(user, "<span class='notice'>Alt-click to adjust its direction.</span>")
+
 /obj/structure/reflector/bullet_act(obj/item/projectile/P)
 	var/turf/reflector_turf = get_turf(src)
 	var/turf/reflect_turf