Add new Notif flag on DirectReply and SmartReply

Adds a new flag to a Notification object when the notification is direct
replied or smart replied. This flag will be used as part of moving
lifetime extension to NotificationManagerService, to prevent
cancelation in NMS.

Bug: 230652175
Test: atest NotificationRecordTest
Change-Id: Id00321044aede13833f3066c7ba493d54e514620