enhancement: add `points_size` argument to `cv_plot()`

[AMBarbosa]

Hi! Depending on screen / plotting window size, cv_plot() points may overlap and make it look like the entire region is covered:

...while plotting them with alternate code (and a smaller point size) reveals relevant gaps:

A points_size argument would be useful for these situations, which are likely common.

Cheers,

[rvalavi]

Hi @AMBarbosa, thanks for the suggestion! cv_similarity() already has a points_size argument, but I missed adding it to cv_plot(). I’ll add it in the next update.