Allow nwbinspector CLI to accept URLs

[stephprince]

Motivation

Fix #558.

Add a condition to distinguish dandiset file paths and URLs, and add a test for using a URL with the CLI

[rly]

Should the test be added into tests/streaming_cli_tests.py instead of tests/streaming_tests.py

[stephprince]

Should the test be added into tests/streaming_cli_tests.py instead of tests/streaming_tests.py

Good point, yes that makes more sense - I've moved it there.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.90%. Comparing base (6bd898c) to head (e6f99ff).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #559      +/-   ##
==========================================
+ Coverage   82.73%   86.90%   +4.16%     
==========================================
  Files          47       47              
  Lines        1512     1512              
==========================================
+ Hits         1251     1314      +63     
+ Misses        261      198      -63     

Files with missing lines	Coverage Δ
src/nwbinspector/_nwbinspector_cli.py	92.00% <100.00%> (+8.00%)	⬆️

... and 4 files with indirect coverage changes