[enh] Move ElasticSearch plugins into external project (cesium-plus-pod)

...rg/duniter/elasticsearch/util/springtemplate/STUtils.java

...ter/elasticsearch/util/springtemplate/StringRenderer.java

...ter/elasticsearch/websocket/WebSocketChangesEndPoint.java

.../org/duniter/elasticsearch/websocket/WebSocketModule.java

.../org/duniter/elasticsearch/websocket/WebSocketServer.java

...urces/META-INF/services/javax.websocket.ContainerProvider

...n/resources/META-INF/services/org.duniter.core.beans.Bean

...rc/main/resources/i18n/duniter4j-es-core_en_GB.properties

...rc/main/resources/i18n/duniter4j-es-core_fr_FR.properties

...ources/org/duniter/elasticsearch/templates/cesium_logo.st

...sources/org/duniter/elasticsearch/templates/html_share.st

duniter4j-es-core/src/main/resources/plugin-security.policy

duniter4j-es-core/src/test/es-home/config/elasticsearch.yml

duniter4j-es-core/src/test/es-home/config/logging.yml

...src/test/java/org/duniter/elasticsearch/TestFixtures.java

...src/test/java/org/duniter/elasticsearch/TestResource.java

...org/duniter/elasticsearch/model/SynchroExecutionTest.java

.../duniter/elasticsearch/service/BlockchainServiceTest.java

...rg/duniter/elasticsearch/service/CurrencyServiceTest.java

...org/duniter/elasticsearch/service/DocStatServiceTest.java