Fix IoU, Add extend(), Add shift() to BBsOnImage, Improve is_out_of_image()/remove_out_of_image()/cut_out_of_image()
Fix IoU, Add extend(), Add shift() to BBsOnImage, Improve is_out_of_image()/remove_out_of_image()/cut_out_of_image()

aleju/imgaug,aleju/ImageAugmenter,aleju/imgaug