* Renamed FileUtils to IOUtils and extended it with folder related validation methods. ** Defined DirectoryWriterErrorMessageBuilder to be used in validation message generation. * Extended MapControl with BackgroundMapData property. ** MapControl observes BackgroundMapData for changes. ** BackgroundMapData defines the coordinate system used, and will reprojet all other layers when needed. * Defined testing mocks for getting fake tile data, instead of requiring an internet connection for tests. * PipingFailureMechanismView makes use of the BackgroundMapData feature. Related to Issue [WTI-1088] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@7881 5a3db67b-de53-47b5-99c8-a1c30a6650e2