DSE-Import: Fix multi-import of same artefact types
- Use separate maps for remembering the selected elements and the applicable converters.
- Only allow importing one IProjectRootElement type per DSE project.
- Register converters on import wizard creation, instead of the getNextPage() call.
Issue-Ref: 3788 Issue-Url: https://af3-developer.fortiss.org/issues/3788 Signed-off-by: Alexander Diewald diewald@fortiss.org
Edited by Tiziano Munaro