[V3 Audio] Add voteskip and DJ role

[aikaterna]

Type

• Bugfix
• Enhancement
• New feature

Description of the changes

Added vote skip and DJ Role setting to Audio.

Generally exempt users (hereafter referred to as “Mods”):
Red admins, Red mods, bot owner, bot co-owners, server owner, users with the DJ role (if active)

Default mode:
Everyone can play, search, stop, and use queue management commands (bump, prev, remove, etc).
Mods can manage the queue without being in the voice channel.
Disconnect is restricted to the Mods.

Voteskip mode:
Everyone can play, search, and use queue management commands.
Mods can manage the queue without being in the voice channel.
Plebs (non-generally exempt users) are prompted to vote to skip when using stop and cannot use disconnect when there are other users listening to music.
Plebs must vote to skip a song by using the skip command. This vote process ignores generally exempt users - they can skip immediately without voting.
Plebs are able to use restricted commands without restrictions when they are the only person listening.

DJ Role mode:
Most commands are restricted for use to only users with the admin-designated DJ role. Mods are exempt.
Plebs can use now, queue, and search but they will not have options to enqueue any songs or use any queue management commands.

DJ Role mode and Voteskip mode enabled:
Everything listed in the DJ Role section is true, except that users without the DJ role can now use voteskip to be able to skip songs.