Add cave_synapse_mgr.py and other synapse-related scripts

[JoeStrout]

Initial add of modify_synapse_clusters.py.

More work on modify_synapse_clusters: now writes basic output file.

modify_synapse_clusters now removes clusters under FP lines.

Finished first draft of script; handles FP, FN, and TP now.

Fix typo in BBox3D comment

Revise script output so it only prints failure cases.

Update modify_synapse_clusters to better handle resolution.

Add support for annoying new feature of Neuroglancer source URLs.

Add support for annoying new feature of Neuroglancer source URLs.

Fix formatting.

[codecov]

Codecov Report

Attention: Patch coverage is 5.55556% with 34 lines in your changes missing coverage. Please review.

Project coverage is 99.49%. Comparing base (9a36182) to head (9cb903c).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
zetta_utils/geometry/mask_center.py	0.00%	29 Missing ⚠️
zetta_utils/layer/volumetric/annotation/tasks.py	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #950      +/-   ##
==========================================
- Coverage   99.98%   99.49%   -0.50%     
==========================================
  Files         162      164       +2     
  Lines        6884     6900      +16     
==========================================
- Hits         6883     6865      -18     
- Misses          1       35      +34     

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[supersergiy]

@JoeStrout could you clean up this PR? it looks like there's a few non-code files that shouldn't be committed, CI is failing, and new code files are missing type annotations