Convert cuda.ORB unnamed enum to static const int

modules/cudafeatures2d/include/opencv2/cudafeatures2d.hpp

@@ -452,16 +452,13 @@ public:
 class CV_EXPORTS_W ORB : public Feature2DAsync
 {
 public:
-    enum
-    {
-        X_ROW = 0,
-        Y_ROW,
-        RESPONSE_ROW,
-        ANGLE_ROW,
-        OCTAVE_ROW,
-        SIZE_ROW,
-        ROWS_COUNT
-    };
+    static const int X_ROW        = 0;
+    static const int Y_ROW        = 1;
+    static const int RESPONSE_ROW = 2;
+    static const int ANGLE_ROW    = 3;
+    static const int OCTAVE_ROW   = 4;
+    static const int SIZE_ROW     = 5;
+    static const int ROWS_COUNT   = 6;
 
     CV_WRAP static Ptr<cuda::ORB> create(int nfeatures=500,
                            float scaleFactor=1.2f,