Add legacy h5 support and tree inspection

[quantumjot]

Fix for @Jasminemichalowska:

• Adds legacy support for h5 files where object properties are not stored in the properties subgroup
• Adds a warning in such cases, if filtering has been applied
• Adds a hdf.tree() function to help inspect file contents
• Rudimentary test to make sure that the tree functions output something to the logger

[quantumjot]

Also tagging @nthndy as this may be useful to you too

[deprecated-napari-hub-preview-bot[bot]]

Preview page for your plugin is ready here: https://preview.napari-hub.org/quantumjot/btrack/334 Updated: 2023-06-09T10:56:54.392319

[codecov-commenter]

Codecov Report

Patch coverage: 45.00% and project coverage change: -0.37 :warning:

Comparison is base (671eb43) 85.63% compared to head (06b8713) 85.26%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #334 +/- ## ========================================== - Coverage 85.63% 85.26% -0.37% ========================================== Files 30 30 Lines 1956 1975 +19 Branches 296 301 +5 ========================================== + Hits 1675 1684 +9 - Misses 201 209 +8 - Partials 80 82 +2 ``` | [Impacted Files](https://app.codecov.io/gh/quantumjot/btrack/pull/334?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alan+R+Lowe) | Coverage Δ | | |---|---|---| | [btrack/io/hdf.py](https://app.codecov.io/gh/quantumjot/btrack/pull/334?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alan+R+Lowe#diff-YnRyYWNrL2lvL2hkZi5weQ==) | `76.42% <45.00%> (-2.12%)` | :arrow_down: |

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[quantumjot]

I'll merge this now and will add an issue to add more test coverage of the file handling