Implemented issue 1943

...g/fortiss/tooling/base/migration/IDMigrationProvider.java

.../fortiss/tooling/kernel/extension/IMigrationProvider.java

...org/fortiss/tooling/kernel/internal/MigrationService.java

...ernal/storage/eclipse/EclipseResourceStorageProvider.java

...tooling/kernel/internal/storage/eclipse/ModelContext.java

...org/fortiss/tooling/kernel/service/IMigrationService.java

...rc/org/fortiss/tooling/kernel/utils/EMFResourceUtils.java

.../src/org/fortiss/tooling/kernel/utils/MigrationUtils.java