Singularity Shaders and a lot of Shader Stuff (#2517)

* Beginnings of singulo shader

* LOTS of changes!!

* Minor changes

* Singulo stuff

* Aesthetic changes to singulo

* Combining singulo change

* ShaderAura uses IEntities now, not IPlayerSession

* Fixes?

* Fixes draw order for atmos

* using fix

* Address reviews

* nuget.config whaaa

* nuget haha

* nuget why are you so dum

* happy now

* Preparing for omegachange

* Merge from seventh level of hell

* woork

* Ignorecomponents add

* mmf

* RobustToolbox?

* Fixes

* Fixes Robust?

* adds sprite

* Nullables

* Crit overlay stuff

* Commits Robust

Content.Client/GameObjects/Components/Suspicion/SuspicionRoleComponent.cs

@@ -1,4 +1,4 @@
-#nullable enable
+#nullable enable
 using System.Collections.Generic;
 using Content.Client.UserInterface;
 using Content.Client.UserInterface.Suspicion;
@@ -68,7 +68,7 @@ namespace Content.Client.GameObjects.Components.Suspicion
 
         private void AddTraitorOverlay()
         {
-            if (_overlayManager.HasOverlay(nameof(TraitorOverlay)))
+            if (_overlayManager.HasOverlay<TraitorOverlay>())
             {
                 return;
             }
@@ -85,7 +85,7 @@ namespace Content.Client.GameObjects.Components.Suspicion
                 return;
             }
 
-            _overlayManager.RemoveOverlay(nameof(TraitorOverlay));
+            _overlayManager.RemoveOverlay<TraitorOverlay>();
         }
 
         public override void HandleComponentState(ComponentState? curState, ComponentState? nextState)