Package grouping all classes the user interface consists in.

It mainly consists of the {@link sam.ui.UserInterface user interface} class, which controls how to interact with the user during {@link sam.ui.RulingInterface initialization}, during {@link sam.ui.RunningInterface program computations} and in case of {@link sam.ui.ErrorInterface errors}.
It also defines a general-purpose {@link sam.ui.LogInterface logging interface} which is used extensively throughout the whole application to help bug tracking.