message: Skip some GAPI tests if VideoCapture is not capable to playback video.
diff: @@ -730,6 +730,8 @@ TEST(GAPI_Streaming_Types, OutputScalar)
  cv::VideoCapture cap;
  cap.open(video_path);
  + if (!cap.isOpened())
  + throw SkipTestException("Video file can not be opened");
  cv::Mat tmp;
  cv::Scalar out_scl;
  @@ -774,6 +776,8 @@ TEST(GAPI_Streaming_Types, OutputVector)
  cv::VideoCapture cap;
  cap.open(video_path);
  + if (!cap.isOpened())
  + throw SkipTestException("Video file can not be opened");
  cv::Mat tmp;
  std::vector<int> ref_vec;
  