TEST: activate FourierMellin instanciation test

Testing/Code/FeatureExtraction/otbFeatureExtractionTests6.cxx

@@ -28,7 +28,7 @@ void RegisterTests()
 {
   REGISTER_TEST(otbExtractSegmentsNew);
   REGISTER_TEST(otbExtractSegments);
-//REGISTER_TEST(otbFourierMellinImageFilterNew);
+  REGISTER_TEST(otbFourierMellinImageFilterNew);
 //REGISTER_TEST(otbFourierMellinImageFilterTestFFT);
   REGISTER_TEST(otbFourierMellinImageFilter);
   REGISTER_TEST(otbImageToEdgePathFilterNew);