Add hover_tooltips, hover_formatters, hover_mode

[ahuang11]

Adds opts from holoviz/holoviews#6180

Don't think a test is required since it's just adding plot_opts?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.86%. Comparing base (6c96c7e) to head (0149ef9).
Report is 15 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1385      +/-   ##
==========================================
+ Coverage   87.39%   88.86%   +1.47%     
==========================================
  Files          50       51       +1     
  Lines        7490     7500      +10     
==========================================
+ Hits         6546     6665     +119     
+ Misses        944      835     -109     

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[droumis]

LGTM, but as a monitor rather than a maintainer for hvPlot, I'm not sure if my approval is sufficient to merge, so you might want to wait for Maxime to review or ask another maintainer.

[maximlt]

I've got a few comments.

Doesn't hover_mode duplicate what is already possible with setting hover to e.g. 'vline'? This was added in #493 but never documented I believe.

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Don't think a test is required since it's just adding plot_opts?

Adding tests is pretty much always worth in my opinion, in particular when they're easy to write.

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I would suggest alphabetically ordering the new hover_* parameters in the signature, docstring, and doc.

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We need to find a way to better document these sorts of options. As it stands, I don't think the docs provide sufficient information for users to leverage these new parameters.

[ahuang11]

Filed as an issue for follow up
#1394