Addition of Interactor for selection and construction part

.../java/fr/pasteur/ida/zellige/gui/ConstructionDisplay.java

src/main/java/fr/pasteur/ida/zellige/gui/ImageFXDisplay.java

src/main/java/fr/pasteur/ida/zellige/gui/MainAppFrame.java

...ur/ida/zellige/gui/controller/ConstructionController.java

...fr/pasteur/ida/zellige/gui/controller/MainController.java

...r/ida/zellige/gui/controller/PreprocessingController.java

...steur/ida/zellige/gui/controller/SelectionController.java

...ain/java/fr/pasteur/ida/zellige/gui/controller/Utils.java

...ur/ida/zellige/gui/interactor/ConstructionInteractor.java

...r/ida/zellige/gui/interactor/PreprocessingInteractor.java

...steur/ida/zellige/gui/interactor/SelectionInteractor.java

...a/fr/pasteur/ida/zellige/gui/model/ConstructionModel.java

...main/java/fr/pasteur/ida/zellige/gui/model/MainModel.java

.../fr/pasteur/ida/zellige/gui/model/PreprocessingModel.java

...java/fr/pasteur/ida/zellige/gui/model/SelectionModel.java

...teur/ida/zellige/gui/task/ConstructionCompletionTask.java

...va/fr/pasteur/ida/zellige/gui/task/PreprocessingTask.java

...da/zellige/steps/construction/ConstructionCompletion.java