Fix broken layer hiding on clothes with multiple equipment slots (#34080)

* Fix broken layer hiding on clothes with multiple equipment slots

* Refactor ToggleVisualLayers, HideLayerClothingComponent, and ClothingComponent to allow more
precise layer hide behavior and more CPU efficient layer toggling.

* Adjust HumanoidAppearaceSystem to track which slots are hiding a given layer (e.g. gas mask and welding mask)
Add documentation
Change gas masks to use the new HideLayerClothingComponent structure as an example of its usage

* Fix the delayed snout bug

* Misc cleanup

* Make `bool permanent` implicit from SlotFlags

any non-permanent visibility toggle with `SlotFlags.None` isn't supported with how its set up. And similarly, the slot flags argument does nothing if permanent = true. So IMO it makes more sense to infer it from a nullable arg.

* Split into separate system

Too much pasta

* Remove (hopefully unnecessary) refresh

* Fisk mask networking

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

* Keep old behaviour, use clearer names?

I'm just guessing at what this was meant to do

* english

* Separate slot name & flag

* dirty = true

* fix comment

* Improved SetLayerVisibility with dirtying logic suggested by @ElectroJr

* Only set mask toggled if DisableOnFold is true

* FoldableClothingSystem fixes

* fix bandana state

* Better comment

---------

Co-authored-by: ElectroJr <leonsfriedrich@gmail.com>

Resources/Prototypes/Entities/Clothing/Masks/bandanas.yml

@@ -7,6 +7,7 @@
   - type: Foldable
     canFoldInsideContainer: true
   - type: FoldableClothing
+    foldedEquippedPrefix: "" # folding the bandana will toggles the mask, which adds the toggled prefix. This overrides that prefix.
     foldedSlots:
     - HEAD
     unfoldedSlots:

Resources/Prototypes/Entities/Clothing/Masks/masks.yml

@@ -16,8 +16,8 @@
     - HamsterWearable
     - WhitelistChameleon
   - type: HideLayerClothing
-    slots:
-    - Snout
+    layers:
+      Snout: Mask
     hideOnToggle: true
 
 - type: entity