[EDF29150] : prevent deletion of datastructure of perf log tree on orb_destroy called...

[EDF29150] : prevent deletion of datastructure of perf log tree on orb_destroy called by RuntimeSalome::fini from YACS
             Clean management of instances and POA desactivation even on orb_destroy. To avoid unexpected destroy of perf log instance on container shutdown after successful YACS run the log instance is no more cleaned at container Shutdown.