OZG-4453 adjust naming; create Bean for elasticsearch client

...tor/common/elasticsearch/OzgCloudElasticsearchClient.java

...common/elasticsearch/OzgCloudElasticsearchProperties.java

...mon/elasticsearch/OzgCloudElasticsearchRemoteService.java

...or/common/elasticsearch/OzgCloudElasticsearchService.java

...va/de/ozgcloud/operator/user/ElasticsearchReconciler.java

.../de/ozgcloud/operator/user/ElasticsearchSecretHelper.java

...elasticsearch/OzgCloudElasticsearchRemoteServiceTest.java

...ommon/elasticsearch/OzgCloudElasticsearchServiceTest.java

...ator/common/elasticsearch/OzgCloudElasticsearchTest2.java

...e/ozgcloud/operator/user/ElasticsearchReconcilerTest.java

...zgcloud/operator/user/ElasticsearchSecretBuilderTest.java

pom.xml