Coverage to 90%

[mavaylon1]

Motivation

Getting coverage to at least 90% and going through deprecations for HDMF 4.0

Checklist

• Did you update CHANGELOG.md with your changes?
• Does the PR clearly describe the problem and the solution?
• Have you reviewed our Contributing Guide?
• Does the PR use "Fix #XXX" notation to tell GitHub to close the relevant issue numbered XXX when the PR is merged?

[codecov]

Codecov Report

Attention: Patch coverage is 95.55556% with 2 lines in your changes missing coverage. Please review.

Project coverage is 90.92%. Comparing base (8c3eecb) to head (43618c3).
Report is 1 commits behind head on dev.

Files with missing lines	Patch %	Lines
src/hdmf/backends/hdf5/h5tools.py	90.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1198      +/-   ##
==========================================
+ Coverage   89.12%   90.92%   +1.80%     
==========================================
  Files          45       43       -2     
  Lines        9947     9525     -422     
  Branches     2827     2722     -105     
==========================================
- Hits         8865     8661     -204     
+ Misses        762      571     -191     
+ Partials      320      293      -27     

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[mavaylon1]

Review Notes: I did a few rounds of searches to make sure anything region reference related is removed. There is one method I left a note on. HDMF_Zarr needs to be updated when this is merged.

[rly]

This is great. Could you also remove fmt_docval_args from hdmf/utils.py?

[rly]

And call_docval_func and the blocks of commented functions in hdmf/utils.py