Salieri: shader cache (#1701)

Here come Salieri, my implementation of a disk shader cache!

"I'm sure you know why I named it that."
"It doesn't really mean anything."

This implementation collects shaders at runtime and cache them to be later compiled when starting a game.

Ryujinx.Graphics.Gpu/Engine/Compute.cs

@@ -59,7 +59,7 @@ namespace Ryujinx.Graphics.Gpu.Engine
             TextureManager.SetComputeTexturePool(texturePool.Address.Pack(), texturePool.MaximumId);
             TextureManager.SetComputeTextureBufferIndex(state.Get<int>(MethodOffset.TextureBufferIndex));
 
-            ShaderProgramInfo info = cs.Shaders[0].Program.Info;
+            ShaderProgramInfo info = cs.Shaders[0].Info;
 
             for (int index = 0; index < info.CBuffers.Count; index++)
             {