Fix DD4hep_DetectorDump plugin to avoid crash.

[MarkusFrankATcernch]

BEGINRELEASENOTES

• Fix DD4hep_DetectorDump plugin to avoid crash if a DetElement placement is invalid,
  which is not allowed, but also should not end up in a crash.
• Add test to check if DetElements have proper placement set using MiniTel example
  (see examples/ClientTests/compact/MiniTel_err_place.xml) and
  test MiniTel_check_missing_placements
• The fake DD4hep object TwistedTube did not correctly emulate the different constructors when converted
  to Geant4. This should be fixed with this PR.
  ENDRELEASENOTES

[MarkusFrankATcernch]

@bcouturi
This should fix the crash you got in the detector dump:
https://gitlab.cern.ch/lhcb/Detector/-/merge_requests/497
Now the path of the detector element should be printed insead like:

DetectorDump     ERROR 004         /MyLHCBdetector1/side_0/module_9 DetElement with INVALID PLACEMENT!

[github-actions]

Test Results

    8 files      8 suites   3h 24m 41s ⏱️
  361 tests   361 ✅ 0 💤 0 ❌
1 420 runs  1 420 ✅ 0 💤 0 ❌

Results for commit 96318ce.

♻️ This comment has been updated with latest results.