Is your feature request related to a problem? Please describe.

As we know, we can send ContactCard message peer to peer or to room in Wechaty, but we can do nothing when we received a ContactCard message in Wechaty.

Describe the solution you'd like

I hope that we can use ContactCard to add friend. Then we can add friend in room or pm by Wechaty.

Describe alternatives you've considered

We can do something like UrlLink, create a model named contact-card in Wechaty, and it need a ContactCardPayload like this:

export interface UrlLinkPayload {
  userName : string,
  nickName: string,
  headImgUrl: string,
}

When the bot received ContactCard message, then we use function message.toContact() to get userName from ContactCardPayload, and then the bot can add friend by userName.

Additional context

I will create a PR for this issue later.

[enhancement]