Optimize Texture Binding and Shader Specialization Checks (#3399)

* Changes 1

* Changes 2

* Better ModifiedSequence handling

This should handle PreciseEvents properly, and simplifies a few things.

* Minor changes, remove debug log

* Handle stage.Info being null

Hopefully fixes Catherine crash

* Fix shader specialization fast texture lookup

* Fix some things.

* Address Feedback Part 1

* Make method static.

Ryujinx.Graphics.Gpu/Image/Sampler.cs

@@ -8,6 +8,11 @@ namespace Ryujinx.Graphics.Gpu.Image
     /// </summary>
     class Sampler : IDisposable
     {
+        /// <summary>
+        /// True if the sampler is disposed, false otherwise.
+        /// </summary>
+        public bool IsDisposed { get; private set; }
+
         /// <summary>
         /// Host sampler object.
         /// </summary>
@@ -101,6 +106,8 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// </summary>
         public void Dispose()
         {
+            IsDisposed = true;
+
             _hostSampler.Dispose();
             _anisoSampler?.Dispose();
         }