Break antenna when config.xml does not provide enough information about the artifact

[bs-ondem]

Summary of the Improvement

Currently it is possible to add an artifact by the config.xml file without any information, e.g.

<config>
   <addArtifact>
      <artifact>
      </artifact>
   </addArtifact>
</config>

This type of description should be avoided, because it can lead to other problems during the antenna run.

Acceptance Criteria

• [ ] Antenna should break if to less information for artifact is provided

Definition of Done

• Acceptance criteria fulfilled
• The ticket describes what has been done and describes how the results can be verified (e.g. new Jenkins step is inserted, the report can be viewed at X)
• All known limitations are listed and it is described how they will be addressed (e.g., a ticket for the remaining stuff)
• Documentation is updated
• The result has been reviewed: Everything works as described and can be verified reading only the documentation