Migrated goodFeaturesToTrack to features module.

samples/gpu/pyrlk_optical_flow.cpp

@@ -9,6 +9,7 @@
 #include <opencv2/cudaoptflow.hpp>
 #include <opencv2/cudaimgproc.hpp>
 #include <opencv2/cudaarithm.hpp>
+#include <opencv2/cudafeatures2d.hpp>
 
 using namespace std;
 using namespace cv;
@@ -328,4 +329,4 @@ int main(int argc, const char* argv[])
     waitKey(0);
 
     return 0;
-}
+}