Field Request: Add new fields to HubSpot integration

[c-riku]

Is it possible to add these fields to the Engagements object https://github.com/singer-io/tap-hubspot/blob/master/tap_hubspot/schemas/engagements.json?

"engagement": {
"activityType": "",
"teamId": "",
"queueMembershipIds": []
},
"metadata": {
"meetingOutcome": "",
"completionDate": "",
"taskType": ""
}