Numpy Compatibility

[dguittet]

ndarrays can sometimes be used for array inputs, but seem to cause errors when used within dictionary inputs.

For instance, from test_ResourceTools.py:

        # get a solar_resource_data dictionary
        solar = str(Path(__file__).parent / "blythe_ca_33.617773_-114.588261_psmv3_60_tmy.csv")
        data = tools.TMY_CSV_to_solar_data(solar)

        # each irradiance input is a list
        assert (data['dn'][7] == 262)

        # turning into ndarray will cause errors
        data['gh'] = np.array(data['gh'])
     
        model = pvsam.default("FlatPlatePVNone")
        model.SolarResource.solar_resource_data = data
>       model.execute()
E       TypeError: only size-1 arrays can be converted to Python scalars