This ${traverse} checks a given ''Map'' against a table.
!3 Examples
 * .FitLibrary.UserGuide.FitLibraryByExample.MapHandling
 * .FitLibrary.SpecifiCations.CollectionSpecifications.MapTraverse
A ${setTraverse} can also check a ''Map'', if it's explicitly passed one. See:
 * .FitLibrary.SpecifiCations.CollectionSpecifications.SetTraverse.TestMap