[UTILS] Improve b2view TUI

[FrancescAlted]

The b2view command-line TUI (installed as a project script) allows to browse visually inspect a .b2nd or .b2z/.b2d file/dir. It has different views (tree, meta, vlmeta, data), but more love is needed to make it working in a smoother way and/or adding new features.

Also, although b2view has a specific guide at https://blosc.org/python-blosc2/guides/b2view.html, this can be improved by providing a better flow of the text.

Suggested work:

• Use real-world datasets (e.g. coming from parquet files in Hugging Face), and assess navegability on them. Try to improve visual aspects and browsability in general.
• Add a screenshot or short ASCII rendering of the TUI output
• Link it from the parquet-to-blosc2 docs (issue 3 above) since that tool and b2view are often used together

[saphal1998]

can I work on this issue? @FrancescAlted

[FrancescAlted]

Sure, go ahead!