Support bindless texture gather shader instruction

Ryujinx.Graphics.Shader/Decoders/IOpCodeTexture.cs

@@ -0,0 +1,23 @@
+namespace Ryujinx.Graphics.Shader.Decoders
+{
+    interface IOpCodeTexture : IOpCode
+    {
+        Register Rd { get; }
+        Register Ra { get; }
+        Register Rb { get; }
+
+        bool IsArray { get; }
+
+        TextureDimensions Dimensions { get; }
+
+        int ComponentMask { get; }
+
+        int Immediate { get; }
+
+        TextureLodMode LodMode { get; }
+
+        bool HasOffset       { get; }
+        bool HasDepthCompare { get; }
+        bool IsMultisample   { get; }
+    }
+}