Enhancement Request to use Gallery-DL

[nabsiddiqui]

Currently, 4CAT does not download galleries, such as from imgur. These are used significantly on some platforms, like reddit. I would like to make an enhancement request for 4CAT where it uses gallery-dl to download the corresponding images that go with the galleries. Switching to gallery-dl also provides the benefit of logging into reddit, etc. if needed to download certain images. It also will download a single image if it does not find a gallery.

The link to gallery-dl is here: https://github.com/mikf/gallery-dl