Implement Zero-Configuration Resolution Scaling (#1365)

* Initial implementation of Render Target Scaling

Works with most games I have. No GUI option right now, it is hardcoded.

Missing handling for texelFetch operation.

* Realtime Configuration, refactoring.

* texelFetch scaling on fragment shader (WIP)

* Improve Shader-Side changes.

* Fix potential crash when no color/depth bound

* Workaround random uses of textures in compute.

This was blacklisting textures in a few games despite causing no bugs. Will eventually add full support so this doesn't break anything.

* Fix scales oscillating when changing between non-native scales.

* Scaled textures on compute, cleanup, lazier uniform update.

* Cleanup.

* Fix stupidity

* Address Thog Feedback.

* Cover most of GDK's feedback (two comments remain)

* Fix bad rename

* Move IsDepthStencil to FormatExtensions, add docs.

* Fix default config, square texture detection.

* Three final fixes:

- Nearest copy when texture is integer format.
- Texture2D -> Texture3D copy correctly blacklists the texture before trying an unscaled copy (caused driver error)
- Discount small textures.

* Remove scale threshold.

Not needed right now - we'll see if we run into problems.

* All CPU modification blacklists scale.

* Fix comment.

Ryujinx.Graphics.Gpu/Engine/MethodClear.cs

@@ -26,7 +26,9 @@ namespace Ryujinx.Graphics.Gpu.Engine
                 UpdateScissorState(state);
             }
 
-            UpdateRenderTargetState(state, useControl: false);
+            int index = (argument >> 6) & 0xf;
+
+            UpdateRenderTargetState(state, useControl: false, singleUse: index);
 
             TextureManager.CommitGraphicsBindings();
 
@@ -35,8 +37,6 @@ namespace Ryujinx.Graphics.Gpu.Engine
 
             uint componentMask = (uint)((argument >> 2) & 0xf);
 
-            int index = (argument >> 6) & 0xf;
-
             if (componentMask != 0)
             {
                 var clearColor = state.Get<ClearColors>(MethodOffset.ClearColors);