Warn when extrapolating get_permeability_data

[driftregion]

Is your feature request related to a problem? Please describe.

When calling get_permeability_data as shown below, it is possible to pass temperature and frequency values that are outside of the range of the source data, like temperature=-20, frequency=1e12 and get results back without triggering a warning.

import materialdatabase as mdb
db = mdb.MaterialDatabase()
db.get_permeability_data(
    temperature=25,
    frequency=1e5,
    material_name=mdb.Material._3F4,
    datatype=mdb.MeasurementDataType.ComplexPermeability,
    datasource=mdb.MaterialDataSource.ManufacturerDatasheet)

Describe the solution you'd like

• raise a warning ( https://docs.python.org/3/library/warnings.html ) when temperature or frequency are out of range, e.g. "temperature=-20 is outside of range [25, 100]". Use case: quick visual feedback.
• return a tuple of (values, info_dict) similar to the info_dict returned by scipy.curve_fit ( https://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.curve_fit.html ). where info_dict contains:
  • a boolean value indicating whether or not the values were extrapolated, e.g. {"extrapolated": False}. Use case: annotation in subsequent analyses.
  • (nice to have) the maximum distance to the nearest neighbor along the temperature and frequency axes, e.g.: {"furthest_neighbor": (0, 15000)}, indicating that the furthest point away in the interpolation was 0C and 15000 Hz away from the requested point. Use case: proxy for uncertainty.