Sloth's subfloor vismask adventure (#35347)

* Add a subfloor vismask

Significantly cuts down on sent entity count.

* More optimisations

* Fix command

* Fixes

* namespace cleanup

* Review

* Vismasks

* Content update

* Bandaid

* awewa

* Revert these

* reh

* Update Content.Shared/SubFloor/TrayScannerComponent.cs

---------

Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>

Content.Shared/Ghost/GhostComponent.cs

@@ -5,7 +5,7 @@ using Robust.Shared.Prototypes;
 namespace Content.Shared.Ghost;
 
 [RegisterComponent, NetworkedComponent, Access(typeof(SharedGhostSystem))]
-[AutoGenerateComponentState(true)]
+[AutoGenerateComponentState(true), AutoGenerateComponentPause]
 public sealed partial class GhostComponent : Component
 {
     // Actions
@@ -41,7 +41,7 @@ public sealed partial class GhostComponent : Component
 
     // End actions
 
-    [ViewVariables(VVAccess.ReadWrite), DataField]
+    [ViewVariables(VVAccess.ReadWrite), DataField, AutoPausedField]
     public TimeSpan TimeOfDeath = TimeSpan.Zero;
 
     [DataField("booRadius"), ViewVariables(VVAccess.ReadWrite)]