Generate something like TagTrees but for ctime/mtime

[novoid]

Add a separate script (I plan to separate filetags from tagtrees anyway) for generating a directory-link structure that reflects the datestamp of file creation (ctime=default) or modification (mtime): datetrees --dest "~/chosen_link_dir" --level month --mtime

$chosen_link_dir/2018/2018-05/2018-05-01_an_example_file.txt
$chosen_link_dir/2017/2017-11/an_example_file_without_datestamp_at_all.txt
...

• choose a name: datetrees (?)
• default result directory should differ from default tagtrees folder of filetags
• Optional: stop at year/month/day-level with most probably "month" as the default
• separate script within filetags-repository OR create an independent repository
  • dependency to Move general util functions from filetags to a library #11
• implement it ;-)