Crossport core-located metadata bug-fixes

[christian-monch]

This PR adds bug-fixes that have been applied to the metadata core since the metadata code was added to datalad-deprecated

[codecov-commenter]

Codecov Report

Base: 89.50% // Head: 80.47% // Decreases project coverage by -9.03% ⚠️

Coverage data is based on head (a9e5f64) compared to base (fb171bd).
Patch coverage: 71.20% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #71      +/-   ##
==========================================
- Coverage   89.50%   80.47%   -9.04%     
==========================================
  Files          22       58      +36     
  Lines        2831     5347    +2516     
==========================================
+ Hits         2534     4303    +1769     
- Misses        297     1044     +747     

Impacted Files	Coverage Δ
datalad_deprecated/__init__.py	100.00% <ø> (ø)
datalad_deprecated/metadata/aggregate.py	15.08% <15.08%> (ø)
datalad_deprecated/metadata/annotate_paths.py	32.00% <32.00%> (ø)
datalad_deprecated/metadata/search.py	47.40% <47.40%> (ø)
datalad_deprecated/metadata/utils.py	48.00% <48.00%> (ø)
datalad_deprecated/metadata/metadata.py	62.36% <62.36%> (ø)
datalad_deprecated/metadata/extractors/base.py	83.33% <83.33%> (ø)
..._deprecated/metadata/extractors/tests/test_base.py	87.80% <87.80%> (ø)
datalad_deprecated/metadata/indexers/base.py	88.88% <88.88%> (ø)
datalad_deprecated/metadata/extractors/datacite.py	89.58% <89.58%> (ø)
... and 40 more

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[github-actions]

🚀 PR was released in 0.2.5 🚀