RenderDoc API support (ryubing/ryujinx!242)

See merge request ryubing/ryujinx!242

src/Ryujinx.Graphics.RenderDocApi/RenderDocApiVersionAttribute.cs

@@ -0,0 +1,16 @@
+
+using System;
+
+namespace Ryujinx.Graphics.RenderDocApi
+{
+    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Property)]
+    public sealed class RenderDocApiVersionAttribute : Attribute
+    {
+        public Version MinVersion { get; }
+
+        public RenderDocApiVersionAttribute(int major, int minor, int patch = 0)
+        {
+            MinVersion = new Version(major, minor, patch);
+        }
+    }
+}