List Levels json i/o fix and reconnect fix

Слиты nikitronn запросил слияние github/fork/vicdoval/list_levels_import_reconnect_fix в master

Created by: vicdoval

Fixes #3856 (closed) by adding a boolVector memory with the configuration, this allows also coping the node without loosing the configuration also fixes #3857 (closed)

  • Ready for merge.