Add granular permissions to discord apps.

Hello,

I would like the ability to choose which permissions to grant a discord app.

CONTEXT:

I very much enjoy Patreon, and recieving benefits it bestows upon me for supporting several creators.

But I want to explicitly choose which servers I join.  The Patreon app just plopped me in a server while I was asleep.  This is not okay.  The server didn't even EXIST when I went to bed.

As such, I want the ability to remove this permission from the app, while still allowing it to use other abilities.