Move solution and projects to src

src/Ryujinx.Graphics.Gpu/ClassId.cs

@@ -0,0 +1,15 @@
+namespace Ryujinx.Graphics.Gpu
+{
+    /// <summary>
+    /// GPU engine class ID.
+    /// </summary>
+    public enum ClassId
+    {
+        Twod = 0x902d,
+        Threed = 0xb197,
+        Compute = 0xb1c0,
+        InlineToMemory = 0xa140,
+        Dma = 0xb0b5,
+        GPFifo = 0xb06f
+    }
+}