Add space.com image of the day support

[ayan-b]

Space.com uploads an image related to space (almost) everyday in this link: https://www.space.com/34-image-day.html . It would be great if this can be incorporated in the existing program
Expected feature:

1. Check if an image has been uploaded today.
   2.1. If an image has been uploaded, set it as wallpaper.
   2.2 If not, scrape previous day's images from the archive and set it as wallpaper.

[TileThePlane]

New to contributing to open source projects and I would like to work on this feature.

[ayan-b]

Sure, go ahead. But make sure the pictures should be of high quality.