Move solution and projects to src

src/Ryujinx.Graphics.Video/Vp9MvRef.cs

@@ -0,0 +1,11 @@
+using Ryujinx.Common.Memory;
+
+namespace Ryujinx.Graphics.Video
+{
+    // This must match the structure used by NVDEC, do not modify.
+    public struct Vp9MvRef
+    {
+        public Array2<Vp9Mv> Mvs;
+        public Array2<int> RefFrames;
+    }
+}