Add base solution for task 4

model_examples/model_repair/saxony.transportation_network

...mples/model_repair/saxony_original.transportation_network

model_examples/model_to_model/saxony.id_list

model_examples/representations.aird

stgroup.mdsd.id_list.metamodel.edit/.classpath

stgroup.mdsd.id_list.metamodel.edit/.gitignore

stgroup.mdsd.id_list.metamodel.edit/.project

...metamodel.edit/.settings/org.eclipse.core.resources.prefs

stgroup.mdsd.id_list.metamodel.edit/META-INF/MANIFEST.MF

stgroup.mdsd.id_list.metamodel.edit/build.properties

...dsd.id_list.metamodel.edit/icons/full/obj16/ElementId.gif

...oup.mdsd.id_list.metamodel.edit/icons/full/obj16/Root.gif

stgroup.mdsd.id_list.metamodel.edit/plugin.properties

stgroup.mdsd.id_list.metamodel.edit/plugin.xml

...ist/metamodel/id_list/provider/ElementIdItemProvider.java

...id_list/metamodel/id_list/provider/Id_listEditPlugin.java

...l/id_list/provider/Id_listItemProviderAdapterFactory.java

.../id_list/metamodel/id_list/provider/RootItemProvider.java

stgroup.mdsd.id_list.metamodel.editor/.classpath

stgroup.mdsd.id_list.metamodel.editor/.gitignore