Allow changing status type

[julianschiavo]

Allow changing status type (playing, watching, listening) for Rich Presence.

Note an example of a listening Rich Presence on the developers testing the Spotify integration's Rich Presences.

Also, discordjs/discord.js#2103 is a (closed) discord.js issue with an example of a rich presence type:

client.user.setPresence({
    activity: {
//[...]
        name: "",
        type: "LISTENING",
        details: "",
        state: ""
//[...]
    }
});```

[FOG-Yamato]

The internal RPC server methods do not accept the presence type as a argument, the only way for you to change it is to connect to the API and do it from there

[FOG-Yamato]

Did you understand what I said? the RPC connection does not accept the type, it's something that Discord handles, we can't change it.