Updated item_generator to have states. Also made it extend Damageable class and added a broken state

scripts/crafting_station/state/working.gd

@@ -50,4 +50,5 @@ func on_item_holder_item_changed(item):
 
 func on_damage_taken():
 	if ctx.current_hp <= 0:
+		ctx.gen_timer.stop()
 		ctx.change_state(ctx.States[ctx.EState.BROKEN].new())