Ports table item autoalign from Bay (#6946)

Made it so items get their pixel x/y reset on pickup.
    Thrown items now also get their pixel placement slightly randomized.
    Tweaked the center of mass on a boatload of items to be more accurate to their sprite art.
    Replaced a bunch of randomized pixel placement code into a unifying proc; randpixel_xy() that uses an item's randpixel var.

code/game/objects/items/devices/lighting/lamp.dm

@@ -3,6 +3,7 @@
 	desc = "A desk lamp with an adjustable mount."
 	icon_state = "lamp"
 	item_state = "lamp"
+	center_of_mass = list("x" = 13,"y" = 11)
 	brightness_on = 5
 	w_class = 5
 	flags = CONDUCT
@@ -17,6 +18,7 @@
 	desc = "A classic green-shaded desk lamp."
 	icon_state = "lampgreen"
 	item_state = "lampgreen"
+	center_of_mass = list("x" = 15,"y" = 11)
 	brightness_on = 5
 	light_color = "#FFC58F"
 

code/game/objects/items/devices/multitool.dm

@@ -62,14 +62,14 @@
 		destroyed_event.unregister(buffer_object, src)
 		buffer_object = null
 
-/obj/item/device/multitool/resolve_attackby(atom/A, mob/user)
+/obj/item/device/multitool/resolve_attackby(atom/A, mob/user, var/click_parameters)
 	if(!isobj(A))
-		return ..(A, user)
+		return ..(A, user, click_parameters)
 
 	var/obj/O = A
 	var/datum/expansion/multitool/MT = LAZYACCESS(O.expansions, /datum/expansion/multitool)
 	if(!MT)
-		return ..(A, user)
+		return ..(A, user, click_parameters)
 
 	user.AddTopicPrint(src)
 	MT.interact(src, user)