RPC_CondCabling: avoid expensive copies of SectorLogicSetup
RpcCablingCondAlg was accidentally making copies of the huge
SectorLogicSetup class. Make sure to use references and move
semantics. This speeds up the creation of the conditions by a
factor ~2.5 (e.g. number mallocs are reduced from 11M to 3M).
To avoid future problems, make the class move-only as we don't really need to make copies.