Make UT code compile with DD4hep
Part of the set of MRs LHCb!3386 (merged) Lbcom!596 (merged) Rec!2700 (merged) !378 (merged) Allen!757 (merged) Brunel!1193 (merged)
Part of the set of MRs LHCb!3386 (merged) Lbcom!596 (merged) Rec!2700 (merged) !378 (merged) Allen!757 (merged) Brunel!1193 (merged)