Manual merge RefactoringTowardCleanArchitecture to master

.idea/compiler.xml

.idea/encodings.xml

.idea/encodings.xml.orig

.idea/misc.xml

.idea/modules.xml

pom.xml

...f/vocabulary/RelationLabelToUnlPropertyConverterTest.java

..._libre/unltools/unl/print/dotFile/DotFileBuilderTest.java

unl-tools-application/pom.xml

.../tetras_libre/unltools/CommandHandlerResolverBuilder.java

.../fr/tetras_libre/unltools/Convert/ExportUnlDocuments.java

...ras_libre/unltools/Convert/ExportUnlDocumentsHandler.java

..._libre/unltools/DefaultCommandHandlerResolverFactory.java

unl-tools-application/unl-tools-application.iml

unl-tools-core/pom.xml

.../src/main/java/fr/tetras_libre/unltools/cqrs/Command.java

...in/java/fr/tetras_libre/unltools/cqrs/CommandHandler.java

...fr/tetras_libre/unltools/cqrs/CommandHandlerResolver.java

...src/main/java/fr/tetras_libre/unltools/cqrs/Mediator.java

...e/src/main/java/fr/tetras_libre/unltools/cqrs/Result.java