Add support for advanced blend (part 1/2) (#2801)

* Add blend microcode registers

* Add advanced blend support using host extension

* Remove debug message

* Use pre-generated table for blend functions

* XML docs

* Rename AdvancedBlendMode to AdvancedBlendOp for consistency

* Remove redundant code

* Fix some advanced blend related issues on Vulkan

* Formatting

Ryujinx.Graphics.GAL/Multithreading/ThreadedPipeline.cs

@@ -131,6 +131,12 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             _renderer.QueueCommand();
         }
 
+        public void SetBlendState(AdvancedBlendDescriptor blend)
+        {
+            _renderer.New<SetBlendStateAdvancedCommand>().Set(blend);
+            _renderer.QueueCommand();
+        }
+
         public void SetBlendState(int index, BlendDescriptor blend)
         {
             _renderer.New<SetBlendStateCommand>().Set(index, blend);