fix: DamageVisualsSystem now works for walls

[JoulesMango]

About the PR

(Oh god Im so tired)
I've been thinking about this for a while now!...
I suspected this had something to do with how the layers get drawn, like how the airlocks have a buch of layers and how the order wich they get drawn
I started reading how DrawDepth gets used but it only allows one drawdepth value, at least I learned a lot about SpriteSystem
SpriteSystem.AddLayers(); .RemoveLayer(); etc etc

This is when I realized that it had all to do with indexing!!
I saw how the Damagevisuals got appended first and then IconSmooth appended it's layers,

this is fixed, but previously the DamagedLayer layer index was always 0

Anyways, point is, eventually i stumbled into the 'ReorderOverlaySprite' function and realized that it wasn't using the 'SpriteSystem.AddLayer();' thing correctly

[github-actions]

RSI Diff Bot; head commit 536fe35 merging into bafe740
This PR makes changes to 1 or more RSIs. Here is a summary of all changes:

Resources/Textures/_Persistence14/Structures/walls/shuttle_damage.rsi

State	Old	New	Status
DamageOverlay_10			Added
DamageOverlay_20			Added
DamageOverlay_30			Added
DamageOverlay_5			Added

Resources/Textures/_Persistence14/Structures/walls/wall_damage.rsi

State	Old	New	Status
DamageOverlay_10			Added
DamageOverlay_20			Added
DamageOverlay_30			Added
DamageOverlay_40			Added
DamageOverlay_5			Added

Edit: diff updated after 536fe35

[Zetaplx]

YOU ACTUALLY DID IT?!?!?!?!

I was banging my head against this wall for hours trying to figure this out. Good work.

[JoulesMango]

new generic walls damage overlays!!

[stinkiestdog]

is this change for shuttle windows intended? maybe something done for testing that slipped through?

[stinkiestdog]

is this change for shuttle walls intended? maybe also from testing?

[stinkiestdog]

Aside from those two, it would be great to have comments for all of these changes marking them as being made for persistence.

// Persistence: DamageVisualsSystem works for more structure types
or
# Persistence: DamageVisualsSystem works for more structure types
or

# Start Persistence: DamageVisualsSystem works for more structure types
<group of lines with changes>
# End Persistence

This makes resolving conflicts during upstream merges much easier & somewhat less likely to break things