Stop using glTransformFeedbackVaryings and use explicit layout on the shader (#3012)

* Stop using glTransformFeedbackVarying and use explicit layout on the shader

* This is no longer needed

* Shader cache version bump

* Fix gl_PerVertex output for tessellation control shaders

Ryujinx.Graphics.Gpu/Shader/GpuAccessorState.cs

@@ -38,6 +38,11 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// </summary>
         public TessMode TessellationMode { get; }
 
+        /// <summary>
+        /// Transform feedback information, if the shader uses transform feedback. Otherwise, should be null.
+        /// </summary>
+        public TransformFeedbackDescriptor[] TransformFeedbackDescriptors { get; set; }
+
         /// <summary>
         /// Creates a new instance of the GPU accessor state.
         /// </summary>
@@ -61,6 +66,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
             EarlyZForce = earlyZForce;
             Topology = topology;
             TessellationMode = tessellationMode;
+            TransformFeedbackDescriptors = null;
         }
     }
 }