Merge "Merge MerkleTree and MTNode"

diff --cc rest-services/cbs-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/cbs/client/api/listener/ListenableCbsConfigTest.java
Simple merge

diff --cc rest-services/cbs-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/cbs/client/api/listener/MerkleTreeTest.java
index dee1150,b24ff2e..1077ee6
--- 1/rest-services/cbs-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/cbs/client/api/listener/MerkleTreeTest.java
--- 2/rest-services/cbs-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/cbs/client/api/listener/MerkleTreeTest.java
+++ b/rest-services/cbs-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/cbs/client/api/listener/MerkleTreeTest.java
@@@ -22,7 -22,9 +22,8 @@@ package org.onap.dcaegen2.services.sdk.
  
  import static org.assertj.core.api.Assertions.assertThat;
  
+ import io.vavr.collection.List;
  import org.junit.jupiter.api.Test;
 -import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.listener.MerkleTree;
  
  /**
   * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>