added licensing header

ad-connector/src/main/java/module-info.java

...src/main/java/net/jami/jams/ad/connector/ADConnector.java

...jami/jams/ad/connector/service/AuthenticationService.java

...et/jami/jams/ad/connector/service/UserProfileService.java

authentication-module/src/main/java/module-info.java

.../main/java/net/jami/jams/authmodule/RegisterUserFlow.java

...c/main/java/net/jami/jams/authmodule/TokenController.java

...va/net/jami/jams/authmodule/UserAuthenticationModule.java

datastore/src/main/java/module-info.java

...ore/src/main/java/net/jami/datastore/dao/AbstractDao.java

...tore/src/main/java/net/jami/datastore/dao/ContactDao.java

...store/src/main/java/net/jami/datastore/dao/DeviceDao.java

...store/src/main/java/net/jami/datastore/dao/SystemDao.java

datastore/src/main/java/net/jami/datastore/dao/UserDao.java

.../src/main/java/net/jami/datastore/dao/UserProfileDAO.java

...tore/src/main/java/net/jami/datastore/main/DataStore.java

.../src/test/java/net/jami/datastore/dao/ContactDaoTest.java

datastore/src/test/java/net/jami/datastore/dao/DAOTest.java

...e/src/test/java/net/jami/datastore/dao/SystemDaoTest.java

jami-dht/src/main/java/module-info.java