Data populated ratio

[Gautzilla]

🐋 What's new?

This PR adds some stuff to the API to help the user filtering out data:

Property/Method name	Description	Done
BaseData.populated_duration	Return the total duration of non-empty items	✅
BaseData.populated_ratio	Return the ratio between the duration of non-empty items and the duration of the data	✅
SpectroData.populated_duration	Return the total duration of non-empty items if the SpectroData has associated files, otherwise the populated_duration of the linked AudioData	✅
BaseDataset.remove_data_on_populated_ratio(threshold=0.)	Remove all data that have a populated ratio lower than threshold	✅

🐬Note

This PR resove #295

[Gautzilla]

@mathieudpnt

[mathieudpnt]

LGTM but as we discussed I would like some possibility to trace the removed data
if remove_empty_data method returns the dismissed data that would be all good 👌

[Gautzilla]

if remove_empty_data method returns the dismissed data that would be all good 👌

[Gautzilla]

LGTM but as we discussed I would like some possibility to trace the removed data if remove_empty_data method returns the dismissed data that would be all good 👌

Done, you can use it like so:

# Filter the returned AudioDataset
removed_data = audio_dataset.remove_empty_data(threshold=0.0)

# Ttake a look at which data has been removed:
print(f"{' REMOVED DATA ':#^60}")
print(f"{'Begin':<20}{'Duration':^20}{'Fill rate':>20}")
for data in removed_data:
    print(
        f"{data.begin.strftime('%H:%M:%S'):<20}{str(data.duration):^20}{str(data.populated_ratio) + ' %':>20}"
    )

"""
prints:

####################### REMOVED DATA #######################
Begin                     Duration                 Fill rate
22:35:41              0 days 00:00:05                  0.0 %
22:35:45              0 days 00:00:05                  0.0 %
22:35:48              0 days 00:00:05                  0.0 %
22:35:52              0 days 00:00:05                  0.0 %
"""