Move images (photos) into a year/month/day directory structure based on exif information.
It finds all *.jpg images in a given directory and moves them into a
$BASE/$YEAR/$MONTH/$DAY/ directory structure (the $BASE is
hardcoded).
Any missing directores is created as needed.
Any file that has the same base name as the image but a differen
suffix (e.g. a .txt or .md file with notes about the image or the
camera raw format of the image) is moved along with the image.