Search user's organizations by visibility

schema-request

#1

In the same way that we can search for a user’s repositories by their visibility (public or private), it would be useful to be able to see organizations where membership is public or not.

query { 
  user (login: "LightDiscord") {
    organizations(first: 20 membership: PUBLIC) {
      nodes {
        login
      }
    }
  }
}

It would also be nice to be able to get members from an organisation according to the visibility of their membership.

query {
  organization(login: "Fork-Native-Light-Foundation") {
    members(first: 5 membership: PUBLIC) {
      nodes {
        login
      }
    }
  }
}