[openbox] Recently used files pipemenu

[D.T.]

Hello,
I played around with this for a day or two.
Of course there's a few scripts already that read
~/.local/share/recently-used.xbel, but this one is particularly
interesting for those who care about proper mimetype icons in their
openbox menu.

Get it here:
https://framagit.org/ohnonot/stuff/-/blob/master/recent
or here:
https://notabug.org/ohnonot/stuff/src/master/recent

Further expanation in the code comments.

o.