Discord rich presence support

[ryanocf]

Hey,

would be cool to have an official rich presence support for discord.
Here are some examples of how it could look:

Watching:
https://i.imgur.com/EWcxocm.png (series with episodes)
https://i.imgur.com/AvCf6AK.png (movie)

Paused:
https://i.imgur.com/rFyi3fv.png (both)