Add support for bindless textures from shader input (vertex buffer) on Vulkan (#6577)

* Add support for bindless textures from shader input (vertex buffer)

* Shader cache version bump

* Format whitespace

* Remove cache entries on pool removal, disable for OpenGL

* PR feedback

src/Ryujinx.Graphics.Shader/TextureHandle.cs

@@ -9,6 +9,7 @@ namespace Ryujinx.Graphics.Shader
         SeparateSamplerHandle = 1,
         SeparateSamplerId = 2,
         SeparateConstantSamplerHandle = 3,
+        Direct = 4,
     }
 
     public static class TextureHandle