[Suggestion/Feature] Support Wallpaper Engine wallpapers

[luvicsoura]

First and foremost, I would like to thank the System 76/Pop!_OS team for their great distro and user experience, and to state that I’m eagerly awaiting the release of this awesome new DE. That said, I would like to leave here a suggestion that I believe would make the new DE even more awesome.

It would be cool If cosmic-bg supported wallpapers from Wallpaper Engine and the like, there already are some projects that bring wallpaper engine support into Linux, namely Wallpaper Engine for Kde KDE plugin and linux-wallpaperengine.

I do understand that if this feature is ever adopted It would probably be long after the release of Cosmic.

[DKB0512]

Native implementation would be awesome to have instead of using third-party which usually takes much more memory. Support for GIF and/or any kind of MP4 file upto 60fps would be nice to have in cosmic.