Send data to OpenGL host without client-side copies (#285)

* Directly send host address to buffer data

* Cleanup OGLShader

* Directly copy vertex and index data too

* Revert shader bind "cache"

* Address feedback

Ryujinx.HLE/Gpu/Memory/NvGpuVmm.cs

@@ -1,5 +1,6 @@
 using ChocolArm64.Memory;
 using Ryujinx.Graphics.Gal;
+using System;
 using System.Collections.Concurrent;
 
 namespace Ryujinx.HLE.Gpu.Memory
@@ -279,6 +280,11 @@ namespace Ryujinx.HLE.Gpu.Memory
             return Cache.IsRegionModified(Memory, BufferType, PA, Size);
         }
 
+        public IntPtr GetHostAddress(long Position, long Size)
+        {
+            return Memory.GetHostAddress(GetPhysicalAddress(Position), Size);
+        }
+
         public byte ReadByte(long Position)
         {
             Position = GetPhysicalAddress(Position);