New --date-added feature for osxphotos timewarp

[RhetTbull]

In addition to a bug fix and a new batch-edit command, v0.58.0 adds two new options to osxphotos timewarp:

  --date-added DATE               Set date/time added for selected photos.
                                  This changes the date added or imported date
                                  in Photos but does not change the
                                  date/time/timezone of the photo itself. This
                                  is useful for removing photos from the
                                  Recents album, for example if you have
                                  imported old scanned photos. Format is
                                  'YYYY-MM-DD' or 'YYYY-MM-DD HH:MM:SS'. If
                                  time is not included, midnight is assumed.
  --date-added-from-photo         Set date/time added for selected photos to
                                  the date/time the photo was taken. This
                                  changes the date added or imported date in
                                  Photos but does not change the
                                  date/time/timezone of the photo itself.

These allow you to change the "date added" date for photos which is something Photos itself doesn't allow you to do. This is useful to remove photos from the Recents album or for making sure that photos sort correctly. For example, if you added a bunch of old scanned images (with dates correctly set in EXIF data), Photos would correctly set the "date created" field based on the EXIF data and in the "all photos" or "years" views, the photos would be sorted correctly. However, in the "Recents" album. all the imported photos would show as the most recent photos which may not be the desired behavior. For example, if you use the share sheet to share a photo all the recently added scanned photos would be intermixed with recently taken photos. You can now use timewarp to adjust the date added to fix this.