Just added a few from my collection

I've added a bunch of wallpapers from my collection from a variety of shows (see commit notes). They're all either 1920x1080 or 3840x1080. 

This is my first time forking a repository and submitting a pull request, so apologies if I did anything wrong. Hopefully the wallpapers are up to standard! (Not sure why, but a file was deleted? It seems to have been moved at this point anyway, so hopefully it wont matter.)

Thanks for throwing this together.