record only session data should not be combined

[zduey]

The current pipeline for building a report that combines multiple sessions of record-only data saves out some of the underlying data as combined across sessions. For example, the classifier summaries and the target selection table are across all sessions. For consistency, it would make sense to at least save the classifier summaries on a session by session basis. Since the target_select_table for multiple sessions cannot be constructed from the same table for a single session, it makes sense to keep this aggregated.