Merge shader branch, adding support for GLSL decompilation, a macro

interpreter, and a rewrite of the GPU code.

Ryujinx.Graphics/Gpu/ISwizzle.cs

@@ -0,0 +1,7 @@
+namespace Ryujinx.Graphics.Gpu
+{
+    interface ISwizzle
+    {
+        int GetSwizzleOffset(int X, int Y);
+    }
+}