add Easynews search

Easynews is a usenet provider that also provides web search and download (via http not just nntp)

https://github.com/sleeyax/stremio-easynews-addon
https://github.com/panteLx/easynews-plus-plus

are both stremio addons that allow search and stream from easynews so hopefully it will be easy to add to NzbHydra