Add column for display character (vocab?) to output of runes()

[jennybc]

Continuing from this twitter convo

Could the output of runes() re-iterate the displayed characters? Apologies if I'm using the wrong vocab but what I mean is the first column you see here:

https://apps.timwhitlock.info/unicode/inspect?s=hello+🌍

[romainfrancois]

Thanks for adding this here. I'll make a few tests, I'm just worried about printing anything.

[romainfrancois]

Looks like stringi::stri_escape_unicode can help