Apply for message content privileged intent

[naschorr]

Hawking uses the textual content of the message alongside it's activation string to generate speech, and since it's now in more than 1,100(!) servers, it'll be crucial to become approved.

Where Hawking needs message content:

• \say [text] requires message content to determine what speech to generate
• \find [text] requires message content to know what phrase to search for, otherwise this feature is pointless
• \admin [subcommand] I believe discord.py pulls in message content for subcommands, but I'm not 100% sure (I can't imagine how else it would work though)

Applications for the intent open at October 25, 2021 3:00 PM.

Discord's policy for this intent: https://support.discord.com/hc/en-us/articles/4410940809111
Discord's intent FAQ: https://support-dev.discord.com/hc/en-us/articles/4404772028055-Message-Content-Access-Deprecation-for-Verified-Bots.

[naschorr]

See #160