More formats and wayland support

[xeruf]

It tells me it copied to clipboard, but that is false - I guess because I am on wayland.

Also, how about basing it on https://github.com/Qix-/color-convert which supports more formats?

[mikemcbride]

The copy to clipboard functionality is using this package. It looks like I need to bump the version up on that one, but it says it's cross-platform and supports Linux. My guess is that wayland is causing it. I've got a few things I need to fix on this module so I will look into this issue while I'm doing that. Thanks for the feedback!