Used to convert PASCAL VOC 1.1 (XML) labels to YOLOv3 training labels
PascalVOC_to_YOLOV3.py --pascalvocpath <pascalvocpath> --yolofile <yolofile> --namesfile <namesfile>
PascalVOC_to_YOLOV3.py --pascalvocpath datasets/iris/ --yolofile datasets/iris/data.txt --namesfile datasets/iris/data.names