Declare and use gl_PerVertex block for VTG per-vertex built-ins (#5576)

* Declare and use gl_PerVertex block for VTG per-vertex built-ins

* Shader cache version bump

src/Ryujinx.Graphics.Shader/ShaderStage.cs

@@ -23,5 +23,18 @@ namespace Ryujinx.Graphics.Shader
         {
             return stage == ShaderStage.Vertex || stage == ShaderStage.Fragment || stage == ShaderStage.Compute;
         }
+
+        /// <summary>
+        /// Checks if the shader stage is vertex, tessellation or geometry.
+        /// </summary>
+        /// <param name="stage">Shader stage</param>
+        /// <returns>True if the shader stage is vertex, tessellation or geometry, false otherwise</returns>
+        public static bool IsVtg(this ShaderStage stage)
+        {
+            return stage == ShaderStage.Vertex ||
+                   stage == ShaderStage.TessellationControl ||
+                   stage == ShaderStage.TessellationEvaluation ||
+                   stage == ShaderStage.Geometry;
+        }
     }
 }