Generate shorter readable names in import wizards for remote file imports

In the FlatFile and XmlFile import wizards, select to import a 'remote' file (via url).

The wizard auto-names the SourceModel, ViewModel and View with names that are generated from the URL. Usually resulting in really ugly names.

The names need to be simplified so the wizard looks cleaner, and doesnt force the user to rename them to something human-readable every time.