Small OpenGL Renderer refactoring (#177)

* Call OpenGL functions directly, remove the pfifo thread, some refactoring

* Fix PerformanceStatistics calculating the wrong host fps, remove wait event on PFIFO as this wasn't exactly was causing the freezes (may replace with an exception later)

* Organized the Gpu folder a bit more, renamed a few things, address PR feedback

* Make PerformanceStatistics thread safe

* Remove unused constant

* Use unlimited update rate for better pref

Ryujinx.Graphics/Gal/OpenGL/OGLRenderer.cs

@@ -0,0 +1,50 @@
+using System;
+using System.Collections.Concurrent;
+
+namespace Ryujinx.Graphics.Gal.OpenGL
+{
+    public class OGLRenderer : IGalRenderer
+    {
+        public IGalBlend Blend { get; private set; }
+
+        public IGalFrameBuffer FrameBuffer { get; private set; }
+
+        public IGalRasterizer Rasterizer { get; private set; }
+
+        public IGalShader Shader { get; private set; }
+
+        public IGalTexture Texture { get; private set; }
+
+        private ConcurrentQueue<Action> ActionsQueue;
+
+        public OGLRenderer()
+        {
+            Blend = new OGLBlend();
+
+            FrameBuffer = new OGLFrameBuffer();
+
+            Rasterizer = new OGLRasterizer();
+
+            Shader = new OGLShader();
+
+            Texture = new OGLTexture();
+
+            ActionsQueue = new ConcurrentQueue<Action>();
+        }
+
+        public void QueueAction(Action ActionMthd)
+        {
+            ActionsQueue.Enqueue(ActionMthd);
+        }
+
+        public void RunActions()
+        {
+            int Count = ActionsQueue.Count;
+
+            while (Count-- > 0 && ActionsQueue.TryDequeue(out Action RenderAction))
+            {
+                RenderAction();
+            }
+        }
+    }
+}