Add python scripts and Docker image

Docker/Dockerfile

Docker/entrypoint

Docker/scripts/Ateamclipper.py

Docker/scripts/BLsmooth.py

Docker/scripts/InitSubtract_deep_sort_and_compute.py

Docker/scripts/InitSubtract_sort_and_compute.py

Docker/scripts/add_missing_stations.py

Docker/scripts/check_Ateam_separation.py

Docker/scripts/check_unflagged_fraction.py

Docker/scripts/concat_MS.py

Docker/scripts/convert_npys_to_h5parm.py

Docker/scripts/createRMh5parm.py

Docker/scripts/download_skymodel_target.py

Docker/scripts/find_skymodel_cal.py

Docker/scripts/fits2sky.py

Docker/scripts/getStructure_from_phases.py

Docker/scripts/h5parm_pointingname.py

Docker/scripts/make_clean_mask.py

Docker/scripts/make_source_list.py

Docker/scripts/make_summary.py