Implement streaming in Sprucing passthrough
As Sprucing passthrough does not touch the DstData rawbank, in an SL stream you will get locations such as
/Event/HLT2/Hlt2BnoC_BdToPPbarPiPi
/Event/HLT2/Hlt2BnoC_BdToPPbarPiPi/decayVertices
/Event/HLT2/Hlt2BnoC_BdToPPbarPiPi/Particles
/Event/HLT2/Hlt2BnoC_BdToPPbarPiPi/Particle2VertexRelations
/Event/HLT2/Hlt2Charm_XiccppToLcpMumNu_WS
/Event/HLT2/Hlt2Charm_XiccppToLcpMumNu_WS/decayVertices
/Event/HLT2/Hlt2Charm_XiccppToLcpMumNu_WS/Particles
/Event/HLT2/Hlt2Charm_XiccppToLcpMumNu_WS/Particle2VertexRelations
/Event/HLT2/Hlt2BandQ_LbForSpectroscopySL
/Event/HLT2/Hlt2BandQ_LbForSpectroscopySL/decayVertices
/Event/HLT2/Hlt2BandQ_LbForSpectroscopySL/Particles
/Event/HLT2/Hlt2BandQ_LbForSpectroscopySL/Particle2VertexRelations
/Event/HLT2/Hlt2Charm_DspToKmKpPip_XSec
/Event/HLT2/Hlt2Charm_DspToKmKpPip_XSec/decayVertices
/Event/HLT2/Hlt2Charm_DspToKmKpPip_XSec/Particles
/Event/HLT2/Hlt2Charm_DspToKmKpPip_XSec/Particle2VertexRelations
With optimised streaming the storage cost of this needs to be determined. Regardless is would be better if these locations were streamed.