Stacked transformer: upper air gap too high does not raise an error

[gituser789]

Describe the bug Upper air gap bigger than the upper core part

To Reproduce

    # 1. chose simulation type
    geo = fmt.MagneticComponent(component_type=fmt.ComponentType.IntegratedTransformer,
                                working_directory=working_directory, verbosity=fmt.Verbosity.ToConsole, is_gui=is_test)

    # This line is for automated pytest running on GitHub only. Please ignore this line!
    if onelab_folder is not None:
        geo.file_data.onelab_folder_path = onelab_folder

    # 2. set core parameters
    core_db = fmt.core_database()["PQ 40/40"]
    core_dimensions = fmt.dtos.StackedCoreDimensions(core_inner_diameter=core_db["core_inner_diameter"], window_w=core_db["window_w"],
                                                     window_h_top=0.006,
                                                     window_h_bot=core_db["window_h"])
    core = fmt.Core(core_type=fmt.CoreType.Stacked, core_dimensions=core_dimensions, mu_r_abs=3100, phi_mu_deg=12,
                    sigma=0.6,
                    permeability_datasource=fmt.MaterialDataSource.Custom,
                    permittivity_datasource=fmt.MaterialDataSource.Custom)
    geo.set_core(core)

    # 3. set air gap parameters
    air_gaps = fmt.AirGaps(fmt.AirGapMethod.Stacked, core)
    air_gaps.add_air_gap(fmt.AirGapLegPosition.CenterLeg, 10.5e-3, stacked_position=fmt.StackedPosition.Top)
    air_gaps.add_air_gap(fmt.AirGapLegPosition.CenterLeg, 1e-3, stacked_position=fmt.StackedPosition.Bot)
    geo.set_air_gaps(air_gaps)

    # 4. set insulations
    insulation = fmt.Insulation(flag_insulation=False)
    insulation.add_core_insulations(0.001, 0.001, 0.001, 0.001)  # [bot, top, left, right]
    insulation.add_winding_insulations([[0.0002, 0.001],
                                        [0.001, 0.0002]])
    geo.set_insulation(insulation)

    winding_window_top, winding_window_bot = fmt.create_stacked_winding_windows(core, insulation)

    vww_top = winding_window_top.split_window(fmt.WindingWindowSplit.NoSplit)
    vww_bot = winding_window_bot.split_window(fmt.WindingWindowSplit.NoSplit)

    # 6. set conductor parameters
    winding1 = fmt.Conductor(0, fmt.Conductivity.Copper)
    winding1.set_litz_round_conductor(None, 100, 70e-6, 0.5, fmt.ConductorArrangement.Square)

    winding2 = fmt.Conductor(1, fmt.Conductivity.Copper)
    winding2.set_litz_round_conductor(None, 120, 70e-6, 0.5, fmt.ConductorArrangement.Square)

    # 7. add conductor to vww and add winding window to MagneticComponent
    vww_top.set_interleaved_winding(winding1, 3, winding2, 0, fmt.InterleavedWindingScheme.HorizontalAlternating)
    vww_bot.set_interleaved_winding(winding1, 20, winding2, 7, fmt.InterleavedWindingScheme.HorizontalAlternating)

    geo.set_winding_windows([winding_window_top, winding_window_bot])

    # 8. start simulation with given frequency, currents and phases
    geo.create_model(freq=250000, pre_visualize_geometry=show_visual_outputs)

Expected behavior Raise error before geometry generation.

[gituser789]

fixed by #126