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/Graphics/Overlays/FlashOverlay.cs

@@ -1,4 +1,5 @@
-using Robust.Client.Graphics;
+using Robust.Client.Graphics;
+using Robust.Shared.Enums;
 using Robust.Shared.IoC;
 using Robust.Shared.Maths;
 using Robust.Shared.Prototypes;
@@ -20,7 +21,7 @@ namespace Content.Client.Graphics.Overlays
         private double _lastsFor = 1;
         private Texture _screenshotTexture;
 
-        public FlashOverlay() : base(nameof(FlashOverlay))
+        public FlashOverlay()
         {
             IoCManager.InjectDependencies(this);
             _shader = _prototypeManager.Index<ShaderPrototype>("FlashedEffect").Instance().Duplicate();
@@ -54,10 +55,9 @@ namespace Content.Client.Graphics.Overlays
             }
         }
 
-        protected override void Dispose(bool disposing)
+        protected override void DisposeBehavior()
         {
-            base.Dispose(disposing);
-
+            base.Dispose();
             _screenshotTexture = null;
         }
     }