Add support for HLE macros and accelerate MultiDrawElementsIndirectCount #2 (#2557)

* Add support for HLE macros and accelerate MultiDrawElementsIndirectCount

* Add missing barrier

* Fix index buffer count

* Add support check for each macro hle before use

* Add missing xml doc

Co-authored-by: gdkchan <gab.dark.100@gmail.com>

Ryujinx.Graphics.Gpu/Engine/MME/MacroHLEFunctionName.cs

@@ -0,0 +1,11 @@
+namespace Ryujinx.Graphics.Gpu.Engine.MME
+{
+    /// <summary>
+    /// Name of the High-level implementation of a Macro function.
+    /// </summary>
+    enum MacroHLEFunctionName
+    {
+        None,
+        MultiDrawElementsIndirectCount
+    }
+}