point angle interface to avalonias custom built optimised angle.

samples/ControlCatalog.NetCore/Program.cs

@@ -13,6 +13,7 @@ using Avalonia.Skia;
 using Avalonia.ReactiveUI;
 using Avalonia.Threading;
 using Avalonia.Dialogs;
+using Avalonia.OpenGL;
 
 namespace ControlCatalog.NetCore
 {
@@ -116,7 +117,8 @@ namespace ControlCatalog.NetCore
                 .With(new Win32PlatformOptions
                 {
                     EnableMultitouch = true,
-                    AllowEglInitialization = true
+                    AllowEglInitialization = true,
+                    UseWindowsUIComposition = true
                 })
                 .UseSkia()
                 .UseReactiveUI()

src/Avalonia.OpenGL/Angle/AngleEglInterface.cs

@@ -5,7 +5,7 @@ namespace Avalonia.OpenGL.Angle
 {
     public class AngleEglInterface : EglInterface
     {
-        [DllImport("avangle.dll", CharSet = CharSet.Ansi)]
+        [DllImport("av_libGLESv2.dll", CharSet = CharSet.Ansi)]
         static extern IntPtr EGL_GetProcAddress(string proc);
 
         public AngleEglInterface() : base(LoadAngle())