ICS2 connectivity test messages
- Added the possibility to send ICS2 connectivity test messages as defined in the Test Design Specifications for Economic Operator Conformance Test Scenarios for Release 2 & Release 3 ICS2 STI-STP
- Regression: There was a problem creating a new config database in build 372
- REST API: If partners have been added by the REST API it was not possible to modify their directory poll behavoir