Remove all non null values that are returned #113

Job	Run time
Test BaSyx Client Example	2m 23s
Test BaSyx DataBridge Example	1m 45s
Test BaSyx Dynamic RBAC Example	4m 4s
Test BaSyx Kafka Example	2m 1s
Test BaSyx Minimal Example	1m 52s
Test BaSyx Operation Delegation Example	2m 30s
Test BaSyx Secured Example	2m 8s
Test BaSyx NGINX Example	1m 38s
	18m 21s

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