First, this format is more easy to maintain.
Second, future image decoder dependencies will be
opt-out via build options. This way we can also not
add the mime types in that case.
Closes#125
Part-of: <https://gitlab.gnome.org/Incubator/loupe/-/merge_requests/181>
The initial commit of gnome-image-viewer.
Things are in an MVP state, with image viewing and
opening from the desktop functional. We also can
open images externally, print them, and set them as
backgrounds.
