Filterrific! (#55246)

Filter refactor + In Game Filter Editor
Accessed via VV in the dropdown of atoms. "Edit Filters.
Makes filters actually usable.

Co-authored-by: ghgh <hghgh>

code/modules/client/client_procs.dm

@@ -1080,3 +1080,8 @@ GLOBAL_LIST_INIT(blacklisted_builds, list(
 		var/datum/verbs/menu/menuitem = GLOB.menulist[thing]
 		if (menuitem)
 			menuitem.Load_checked(src)
+
+/client/proc/open_filter_editor(atom/in_atom)
+	if(holder)
+		holder.filteriffic = new /datum/filter_editor(in_atom)
+		holder.filteriffic.ui_interact(mob)