Change path handling from os to pathlib #77

[collinleiber]

• Change path handling from str and os to Path and pathlib
• Add bbc data

[codecov]

Codecov Report

❌ Patch coverage is 88.05970% with 48 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.83%. Comparing base (4a36821) to head (58e1083).

Files with missing lines	Patch %	Lines
clustpy/data/real_world_data.py	78.12%	21 Missing ⚠️
clustpy/data/real_video_data.py	47.61%	11 Missing ⚠️
clustpy/data/_utils.py	76.19%	10 Missing ⚠️
clustpy/utils/evaluation.py	85.29%	5 Missing ⚠️
clustpy/data/real_uci_data.py	99.19%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #111      +/-   ##
==========================================
+ Coverage   92.80%   92.83%   +0.02%     
==========================================
  Files          63       63              
  Lines        9135     9200      +65     
==========================================
+ Hits         8478     8541      +63     
- Misses        657      659       +2     

Files with missing lines	Coverage Δ
clustpy/alternative/nrkmeans.py	92.93% <100.00%> (ø)
clustpy/data/real_clustpy_data.py	100.00% <100.00%> (ø)
clustpy/data/real_medical_mnist_data.py	96.59% <100.00%> (ø)
clustpy/data/real_timeseries_data.py	100.00% <100.00%> (ø)
clustpy/data/real_torchvision_data.py	80.68% <100.00%> (+0.22%)	⬆️
clustpy/deep/_abstract_deep_clustering_algo.py	91.52% <100.00%> (+0.14%)	⬆️
clustpy/deep/_data_utils.py	90.26% <100.00%> (+0.08%)	⬆️
clustpy/deep/_train_utils.py	93.22% <100.00%> (+0.11%)	⬆️
clustpy/deep/aec.py	100.00% <100.00%> (ø)
clustpy/deep/dcn.py	100.00% <100.00%> (ø)
... and 16 more

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