- ES: Add notifications on new or updated comment (on record)

...-core/src/main/java/org/duniter/elasticsearch/Plugin.java

...c/main/java/org/duniter/elasticsearch/PluginSettings.java

...er/elasticsearch/exception/DocumentNotFoundException.java

...va/org/duniter/elasticsearch/service/AbstractService.java

...ava/org/duniter/elasticsearch/service/ServiceLocator.java

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

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

...sticsearch/websocket/changes/WebSocketChangeEndPoint.java

...in/java/org/duniter/elasticsearch/gchange/PluginInit.java

.../duniter/elasticsearch/gchange/service/MarketService.java

...uniter/elasticsearch/gchange/service/RegistryService.java

duniter4j-es-user/pom.xml

.../src/main/java/org/duniter/elasticsearch/user/Plugin.java

.../main/java/org/duniter/elasticsearch/user/PluginInit.java

...a/org/duniter/elasticsearch/user/service/UserService.java

...g/duniter/elasticsearch/user/service/event/UserEvent.java

...r/elasticsearch/user/service/event/UserEventListener.java

...er/elasticsearch/user/service/event/UserEventService.java

...iter/elasticsearch/user/service/event/UserEventUtils.java

...duniter/elasticsearch/user/websocket/WebSocketModule.java