message: Add more details to drawContour description
diff: @@ -4584,6 +4584,8 @@ draws the contours, all the nested contours, all the nested-to-nested contours,
  parameter is only taken into account when there is hierarchy available.
  @param offset Optional contour shift parameter. Shift all the drawn contours by the specified
  \f$\texttt{offset}=(dx,dy)\f$ .
  +@note In case function is called to draw all contours with filled interior (negative contourIdx and thickness) it process nested contours as shapes with holes.
  +In this mode function fill areas inner to odd amount of contours and avoid filling areas inner to even amount of contours using even-odd rule over all edges of all contours.
  */
  CV_EXPORTS_W void drawContours( InputOutputArray image, InputArrayOfArrays contours,
  int contourIdx, const Scalar& color,
  