BS-8956: improve import of Custom Connector from 5.x: include all
Bonita Engine 5.10.1 dependencies lib, support import of several
connectors in the same jar, support Parametrized type for output type,
better support of yesToAll popup for coonector import
Refactor custom connector migration + add messages during import +
improve performances
Merge remote-tracking branch 'origin/BS-8956-EnhanceCustom5xConnectorMigration' into 6.3.x