Various DD4hep fixes
Goes along with and depends on LHCb!2589 (merged), Lbcom!481 (merged), Brunel!1019 (merged), Moore!494 (merged), Boole!291 (merged) and Alignment!133 (merged)
Edited by Sebastien Ponce
Goes along with and depends on LHCb!2589 (merged), Lbcom!481 (merged), Brunel!1019 (merged), Moore!494 (merged), Boole!291 (merged) and Alignment!133 (merged)