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/Atmos/AtmosDebugOverlay.cs

@@ -6,6 +6,8 @@ using Robust.Shared.GameObjects;
 using Robust.Shared.IoC;
 using Robust.Shared.Map;
 using Robust.Shared.Maths;
+using Robust.Shared.Enums;
+using System;
 
 namespace Content.Client.Atmos
 {
@@ -19,7 +21,7 @@ namespace Content.Client.Atmos
 
         public override OverlaySpace Space => OverlaySpace.WorldSpace;
 
-        public AtmosDebugOverlay() : base(nameof(AtmosDebugOverlay))
+        public AtmosDebugOverlay()
         {
             IoCManager.InjectDependencies(this);