Provide engine ObjectMapper via custom interface #592

Job	Run time
javadoc-spotbugs-codeql	4m 38s
build-and-test (17)	1m 41s
build-and-test (20)	1m 26s
build-and-test-nflow-explorer-ng	5m 2s
integration-tests (17, h2)	1m 58s
integration-tests (17, mariadb)	2m 19s
integration-tests (17, postgresql)	2m 30s
integration-tests (17, mysql)	2m 39s
integration-tests (17, sqlserver)	4m 25s
integration-tests (17, db2)	4m 9s
integration-tests (17, oracle)	4m 3s
integration-tests (20, h2)	1m 55s
integration-tests (20, mariadb)	2m 14s
integration-tests (20, postgresql)	2m 17s
integration-tests (20, mysql)	3m 19s
integration-tests (20, sqlserver)	5m 0s
integration-tests (20, db2)	5m 49s
integration-tests (20, oracle)	3m 42s
	59m 6s

Provide feedback