New user group ID request fields for event_subscription endpoints

Added

• New user_group_ids request field in the following App APIs:
  • PATCH /v2/marketplace/app/event_subscription/{eventSubscriptionId}
  • DELETE /v2/marketplace/app/event_subscription
  • POST /v2/marketplace/app/event_subscription
• New user_group_id request field in the following App API:
  • GET /v2/marketplace/app/event_subscription