Added Unit test for CudaORBDetector.DetectRaw function.

Emgu.CV.Test/AutoTestCuda.cs

@@ -590,16 +590,19 @@ namespace Emgu.CV.Test
             using (GpuMat descriptorMat = new GpuMat())
             {
                 CudaInvoke.CvtColor(cudaImage, grayCudaImage, ColorConversion.Bgr2Gray);
+
+                //Async version
                 detector.DetectAsync(grayCudaImage, keyPointMat);
                 detector.Convert(keyPointMat, kpts);
-                //detector.ComputeRaw(grayCudaImage, null, keyPointMat, descriptorMat);
-                //detector.DownloadKeypoints(keyPointMat, kpts);
                 
                 foreach (MKeyPoint kpt in kpts.ToArray())
                 {
                     img.Draw(new CircleF(kpt.Point, 3.0f), new Bgr(0, 255, 0), 1);
                 }
 
+                //sync version
+                detector.DetectRaw(grayCudaImage, kpts);
+
                 //ImageViewer.Show(img);
             }
         }