fixed bad shape of markers (1x4) in several cases and added tests

[AleksandrPanov]

Fixes opencv/opencv#14014
Test for opencv/opencv_contrib#3105

[alalek]

Why do we need new images to test returned types? Why old images does not work?

[AleksandrPanov]

Why do we need new images to test returned types? Why old images does not work?

There is some "if" in void refineDetectedMarkers:

    // parse output
    if(finalAcceptedIds.size() != _detectedIds.total()) {

This condition is met only one image (recover.png).

[AleksandrPanov]

Why do we need new images to test returned types? Why old images does not work?

@alalek, current tests show no errors because they use vector<vector<Point2f> > for corners and rejectedCorners. Also, the current tests only check the number of refined corners (dimension and value are not checked).