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

interpreter, and a rewrite of the GPU code.

Ryujinx.Graphics/Gpu/NvGpuEngine.cs

@@ -0,0 +1,11 @@
+namespace Ryujinx.Graphics.Gpu
+{
+    enum NvGpuEngine
+    {
+        _2d     = 0x902d,
+        _3d     = 0xb197,
+        Compute = 0xb1c0,
+        Kepler  = 0xa140,
+        Dma     = 0xb0b5
+    }
+}