feat: Datasets with loaders

[Repcak2000]

[ofurman]

@RaczeQ @Calychas PR is ready, please check :)

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 98.64253% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 90.62%. Comparing base (5622aa2) to head (aa686c0).

:exclamation: Current head aa686c0 differs from pull request most recent head f01ac4f

Please upload reports for the commit f01ac4f to get more accurate results.

Files	Patch %	Lines
srai/datasets/nyc_bike/dataset.py	93.93%	2 Missing :warning:
srai/datasets/_base.py	94.44%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #430      +/-   ##
==========================================
+ Coverage   89.72%   90.62%   +0.89%     
==========================================
  Files          62       77      +15     
  Lines        2444     2635     +191     
==========================================
+ Hits         2193     2388     +195     
+ Misses        251      247       -4     

Flag	Coverage Δ
macos-13-python3.12	?
ubuntu-latest-python3.10	90.51% <98.64%> (+0.78%)	:arrow_up:
ubuntu-latest-python3.11	90.55% <98.64%> (+0.82%)	:arrow_up:
ubuntu-latest-python3.12	90.55% <98.64%> (+0.90%)	:arrow_up:
ubuntu-latest-python3.9	90.53% <98.64%> (+0.82%)	:arrow_up:
windows-latest-python3.12	90.55% <98.64%> (+0.82%)	:arrow_up:

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[Calychas]

Try to add tests to that and make it pass in ci/cd (you might need to wait on #438 as some issues will be resolved there)

[Calychas]

Note:

• change HFDataset to HuggingFaceDataset
• Better export the datasets so no ".dataset" is needed