add publisherInfo property indicating whether a publisher has claimed their wallet

[diracdeltas]

required by the specs in #2497 to show a green checkmark next to verified publishers. for testing, we can just set brave.com as verified for now.

[mrose17]

the ledger-publisher package doesn't support this yet; however, look for a verified property (boolean), e.g., in

{
  "rank": 4,
  "verified": false,
  "site": "armychemical.com",
  "views": 2,
  "duration": 86142,
  "daysSpent": 0,
  "hoursSpent": 0,
  "minutesSpent": 1,
  "secondsSpent": 26,
  "publisherURL": "https://armychemical.com",
  "score": 4.205352622633424,
  "percentage": 2
}

[mrose17]

closed by fcb444b