Merge remote-tracking branch 'upstream/3.4' into merge-3.4

diff --cc cmake/OpenCVUtils.cmake
Simple merge

diff --cc modules/calib3d/include/opencv2/calib3d.hpp
Simple merge

diff --cc modules/dnn/src/layers/resize_layer.cpp
Simple merge

diff --cc modules/dnn/test/test_layers.cpp
Simple merge

diff --cc modules/highgui/src/window_QT.cpp
Simple merge

diff --cc modules/imgproc/include/opencv2/imgproc.hpp
Simple merge

diff --cc modules/imgproc/src/drawing.cpp
Simple merge

diff --cc modules/objdetect/src/qrcode.cpp
Simple merge

diff --cc modules/videoio/src/cap_avfoundation.mm
Simple merge