Provide the exact time the user was banned

[PeterStark000]

It would be super interesting if there was a field with the ISO8601 timestamp of the moment the user was banned in Discord's ban information, it would help a lot in commands such as ban information or even to filter bans that occurred in x moments.

Currently the API only provides the following fields:

{
 "user":  "Banned user",
 "reason": "Ban reason lul"
}

I suggest implementing a field (banned_at) with the ISO8601 timestamp of the moment the person was banned, example:

{
 "user": "Banned user",
 "reason": "Ban reason lol",
 "banned_at": "2020-08-27T10:34:00.186000+00:00"
}