CvBlob Contour into default OpenCv Contour

```
Hello and thank you for a very nice library!
I would love to ask you if it is possible, and how I should copy contour of a 
blob into a standard OpenCv (vector of points) contour?

Thank you!

Jakub

```

Original issue reported on code.google.com by `kubia...@gmail.com` on 3 May 2014 at 9:39
