Temporal Tables: allow for removing period columns from query results #25366
Description
Currently temporal period columns are mapped as shadow properties (ish) on the entity and are part of the results. This is not really necessary, customers don't interact with those properties (and if they do, they can explicitly map them to a auto-generated property on the entity). By default period columns should not be part of the result so we can reduce the amount of data transferred over the wire.