Add shader non-uniform indexing support (#91)

This PR marks ALL texture indexes as nonuniform to fix an issue with the paths in Tomodachi Life: Living the Dream on AMD cards. It should have a negligible impact on performance (and it should not have an impact at all on NVIDIA cards!)

It's caused by what is called 'implicit non-uniform sampler array indexing'. The idea is basically that some GPUs optimize texture lookups from indexed texture arrays, by assuming that you are never going to index different textures within a single workgroup. What this causes is that visual glitch where a subgroup is tasked with rendering a block of the screen, and in the boundaries some cores are indexing the wrong texture.

Co-authored-by: AsperTheDog <guillerman0000@gmail.com>
Reviewed-on: https://git.ryujinx.app/projects/Ryubing/pulls/91

src/Ryujinx.Graphics.Shader/IGpuAccessor.cs

@@ -336,6 +336,10 @@ namespace Ryujinx.Graphics.Shader
         {
             return true;
         }
+        bool QueryHostSupportsShaderNonUniformIndexing()
+        {
+            return false;
+        }
 
         /// <summary>
         /// Queries host GPU support for signed normalized buffer texture formats.