Added user in different SessionManager requests and notification of token state

src/main/java/fr/ill/ics/bridge/TokenManager.java

src/main/java/fr/ill/ics/bridge/events/TokenEvent.java

.../ill/ics/nscclient/notification/DataChangeSubscriber.java

...ll/ics/nscclient/notification/DataNotificationClient.java

.../nscclient/notification/TokenChangedNotificationData.java

...r/ill/ics/nscclient/sessionmanagement/SessionManager.java