Set Passwords on Voice Channels

There may come a time when a user might want to make use of a public channel in a discord server but is getting plagued by trolls or people they don't want to talk to.

I'd like to suggest allowing discord admins to set a password on Voice channels (or remove it) so some users can have a hangout and give out the password to people they want joining their call.

I know we can already set private DM groups, but that's only possible with friends.