update opening input_object_contours.npz in test_plantcv_object_composition
update opening input_object_contours.npz in test_plantcv_object_composition

danforthcenter/plantcv,stiphyMT/plantcv,danforthcenter/plantcv,stiphyMT/plantcv,stiphyMT/plantcv,danforthcenter/plantcv