PstFrom add_parameters() failing for list-like par files when using dict spatial reference

[briochh]

There is an issue with how location information is extracted from dictionary style spatial reference when processing list-like par files.
e.g.

    xs = np.arange(1000, 2000, 10)
    ys = np.arange(2000, 3000, 10)
    sr_dict = {(i, j): (x,y) for i, y in enumerate(ys) for j, x in enumerate(xs)}
    gs = pyemu.geostats.GeoStruct(variograms=pyemu.geostats.ExpVario(contribution=1, a=250))

    parfile = pd.DataFrame(sr_dict.keys(), columns=['i', 'j'])
    parfile['q'] = range(len(parfile.index))

    md = Path(tmp_path, 'eg')
    md.mkdir(parents=True, exist_ok=True)
    parfile.to_csv(Path(md, "parfile.csv"), index=False, header=False)

    pf = PstFrom(original_d=md, new_d=Path(tmp_path, 'template'),
                 remove_existing=True,
                 longnames=True, spatial_reference=sr_dict,
                 zero_based=True)
    pf.add_parameters("parfile.csv",
                      par_type="grid",
                      index_cols=[0, 1],
                      use_cols=[2],
                      geostruct=gs)

Fails

[briochh]

Working on a fix