refactor: use Map instead of entities in controllers update methods

...model/src/main/java/ch/unige/solidify/model/Citation.java

...a/ch/unige/solidify/controller/CompositionController.java

...h/unige/solidify/controller/Relation3TiersController.java

...java/ch/unige/solidify/controller/ResourceController.java

...h/unige/solidify/controller/SolidifyControllerAdvice.java

.../main/java/ch/unige/solidify/service/ResourceService.java

...n/java/ch/unige/solidify/model/index/IndexFieldAlias.java

.../solidify/controller/index/IndexFieldAliasController.java

...unige/solidify/exception/SolidifyValidationException.java

...fy-model/src/main/java/ch/unige/solidify/model/Label.java

...model/src/main/java/ch/unige/solidify/model/Language.java

...java/ch/unige/solidify/model/SolidifyApplicationRole.java

...rc/main/java/ch/unige/solidify/rest/EmbeddableEntity.java

...el/src/main/java/ch/unige/solidify/rest/ResourceBase.java

...c/main/java/ch/unige/solidify/util/BasicEntityMapper.java

...el/src/main/resources/locale/messages_solidify.properties

...va/ch/unige/solidify/test/util/BasicEntityMapperTest.java

.../java/ch/unige/solidify/test/util/ReflectionToolTest.java

...n/java/ch/unige/solidify/model/oai/OAIMetadataPrefix.java

...del/src/main/java/ch/unige/solidify/model/oai/OAISet.java