Merge branch 'facet_subtract' into 'master'

scripts/gather_model_images.sh

steps/dp3_parset.cwl

steps/gather_model_images.cwl

steps/get_facet_layout.cwl

steps/make_concat_parsets.cwl

steps/predict_facet.cwl

steps/remove_flagged_stations.cwl

steps/split_polygons.cwl

steps/subtract_fov_wsclean.cwl

workflows/facet_subtract.cwl