Allow configuring command usage to add to the audit log.

[scottbucher]

I am currently updating my bot to utilize ephemeral messages in order to lower the clutter it creates, a highly requested change from the community. However, this means commands which edit settings specific to my bot are essentially invisible to other users. This can cause issues if permissions are not setup correctly and someone is changing settings/using commands they shouldn't be.

I would like to have either:

1. The ability to call the api to add an audit log entry so that I can specify the command usage

or, preferably:

2. the ability to, in the command's creation, have a field like auditLog: true, which, whenever that command is used in a guild, will add it to the audit log with the user who used the command, and what arguments were used.