Migrate A-Team-Clipping towards DP3 clipper step

pyproject.toml

scripts/Ateamclipper.py

scripts/plot_Ateamclipper.py

steps/Ateamclipper.cwl

steps/H5ParmCollector.cwl

steps/LoSoTo.Polalign.cwl

steps/clipper.cwl

steps/dp3_make_parset_cal.cwl

steps/dp3_make_parset_target.cwl

steps/dp3_prep_cal.cwl

steps/dp3_prep_target.cwl

steps/merge_skymodels.cwl

steps/plot_Ateamclipper.cwl

workflows/linc_target/dp3_prep_targ.cwl

workflows/linc_target/prep.cwl