Audits wash/cleaning signals + refactors wash() to ensure no needless mob updates occur (#91259)

## About The Pull Request

This has the potential to create a lot of needless mob updates which is
not great. Now should only update a mob's clothing if it was actually
washed.

This PR

1) ensures that all wash() procs return a bitflag.
2) ensures that `wash()` proccalls which result in expensive operations
like icon updates only do so when it is necessary

## Why It's Good For The Game

Updating mob sprites is expensive, and doing it when nothing has been
changed is bad.

## Changelog

Nothing really player facing

code/modules/reagents/reagent_containers/cups/drinkingglass.dm

@@ -57,13 +57,14 @@
 /obj/item/reagent_containers/cup/glass/drinkingglass/proc/on_cleaned(obj/source_component, obj/source)
 	SIGNAL_HANDLER
 	if(!HAS_TRAIT(src, TRAIT_WAS_RENAMED))
-		return
+		return NONE
 
 	qdel(GetComponent(/datum/component/rename))
 	REMOVE_TRAIT(src, TRAIT_WAS_RENAMED, SHAKER_LABEL_TRAIT)
 	name = initial(name)
 	desc = initial(desc)
 	update_appearance(UPDATE_NAME | UPDATE_DESC)
+	return COMPONENT_CLEANED|COMPONENT_CLEANED_GAIN_XP
 
 //Shot glasses!//
 //  This lets us add shots in here instead of lumping them in with drinks because >logic  //

code/modules/reagents/reagent_containers/misc.dm

@@ -204,8 +204,10 @@
 	. = ..()
 	if(!(clean_types & CLEAN_TYPE_BLOOD))
 		return
-	blood_level = 0
-	update_appearance()
+	if(blood_level)
+		blood_level = 0
+		update_appearance()
+		. |= COMPONENT_CLEANED|COMPONENT_CLEANED_GAIN_XP
 
 ///Checks whether or not we should clean.
 /obj/item/rag/proc/should_clean(datum/cleaning_source, atom/atom_to_clean, mob/living/cleaner)