Various DD4hep fixes
Goes along with LHCb!2589 (merged), Lbcom!481 (merged), Rec!2070 (merged), Moore!494 (merged), Boole!291 (merged) and Alignment!133 (merged)
Edited by Sebastien Ponce
Goes along with LHCb!2589 (merged), Lbcom!481 (merged), Rec!2070 (merged), Moore!494 (merged), Boole!291 (merged) and Alignment!133 (merged)