[Backend Configuration IIb] Add backend collection tools

[CodyCBakerPhD]

Expands on #569

This takes the datasets found from the previous dataset collection operation, which is then assembled into a single backend representation of the file contents, and will then be passed back to the user for confirmation before any final configuration of the datasets is performed

[CodyCBakerPhD]

@h-mayorquin Ready for review now, should be an easy one

[h-mayorquin]

Sort PR, so mostly discussion. Now that we are getting to the end of this chain of PRs I have some usability questions but I think this will be better in person. I have some small requests but they are very small details and discussion points. Approving now, up to you if you want to change some of them.

Thanks for all the hard work.

[CodyCBakerPhD]

Now that we are getting to the end of this chain of PRs I have some usability questions but I think this will be better in person. I have some small requests but they are very small details and discussion points.

OK I'll change the wording to 'expected' and merge, leaving the rest of the items for follow-up discussion and action

[h-mayorquin]

@CodyCBakerPhD
Thanks for engaging in discussion. Feel free to merge.

[codecov]

Codecov Report

Merging #570 (df5a1a4) into main (1a7ba58) will increase coverage by 0.02%.
Report is 1 commits behind head on main.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #570      +/-   ##
==========================================
+ Coverage   91.62%   91.65%   +0.02%     
==========================================
  Files         107      107              
  Lines        5648     5653       +5     
==========================================
+ Hits         5175     5181       +6     
+ Misses        473      472       -1     

Flag	Coverage Δ
unittests	91.65% <100.00%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
src/neuroconv/tools/nwb_helpers/__init__.py	100.00% <100.00%> (ø)
...roconv/tools/nwb_helpers/_dataset_configuration.py	92.75% <100.00%> (+2.12%)	⬆️
...euroconv/tools/nwb_helpers/_models/_base_models.py	96.74% <ø> (ø)