Wrench Supermatter Shard to the ground (#36991)

* Temporary concept code for PR

I doubt this code is the standard method of doing things, but trying to understand this code is a bit AIDS

* Using wrench_act() and default_unfasten_wrench() instead

It actually works this time

code/modules/power/supermatter/supermatter.dm

@@ -137,6 +137,8 @@ GLOBAL_DATUM(main_supermatter_engine, /obj/machinery/power/supermatter_shard)
 
 	var/datum/looping_sound/supermatter/soundloop
 
+	var/moveable = TRUE
+
 /obj/machinery/power/supermatter_shard/Initialize()
 	. = ..()
 	uid = gl_uid++
@@ -549,6 +551,10 @@ GLOBAL_DATUM(main_supermatter_engine, /obj/machinery/power/supermatter_shard)
 
 		radiation_pulse(src, 150, 4)
 
+/obj/machinery/power/supermatter_shard/wrench_act(mob/user, obj/item/tool)
+	if (moveable)
+		default_unfasten_wrench(user, tool, time = 20)
+	return TRUE
 
 /obj/machinery/power/supermatter_shard/CollidedWith(atom/movable/AM)
 	if(isliving(AM))
@@ -610,6 +616,7 @@ GLOBAL_DATUM(main_supermatter_engine, /obj/machinery/power/supermatter_shard)
 	anchored = TRUE
 	gasefficency = 0.15
 	explosion_power = 35
+	moveable = FALSE
 
 /obj/machinery/power/supermatter_shard/crystal/engine
 	is_main_engine = TRUE