Track Sources with BIDSURI interface

[tsalo]

Takes over for #1104.

Changes proposed in this pull request

Documentation that should be reviewed

[tsalo]

Looks like I still need to transpose the list of lists of Sources in the concatenation workflow.

[codecov]

Codecov Report

Attention: Patch coverage is 93.10345% with 8 lines in your changes missing coverage. Please review.

Project coverage is 78.88%. Comparing base (c26499b) to head (8da8e1c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
xcp_d/utils/bids.py	61.90%	7 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1283      +/-   ##
==========================================
+ Coverage   78.80%   78.88%   +0.08%     
==========================================
  Files          59       59              
  Lines        7360     7375      +15     
  Branches     1136      956     -180     
==========================================
+ Hits         5800     5818      +18     
+ Misses       1267     1266       -1     
+ Partials      293      291       -2     

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