added code to link between SIPs and IEs

The "--trace" option in command "log" could only find traces of SIP ID, Deposit ID and Deposit Dir, or IE PID and REP PID, because limits in Rosetta's logfile entries.

Anyway, we could use the mechanism of commands "count" and "search" to find a link between IE PID and SIP ID. Then we could trace in a more supportive way.