add class DmpMetadata
modified:   Event/src/DmpMetadata.cc
delete DmpMetadata::fAlgName
default output name: DmpData.root
add DmpMetadata::ListOptions()
modified:   Kernel/src/DmpRootIOSvc.cc
ReadObject()->ReadObject() and LinkRootFile()
wirtlist check, output tree set
add DmpEvtBgoHits (for MCtruth and reconstruction)
fE0->fES0
modified:   Event/include/DmpMetadata.h
modified:   Event/src/DmpMetadata.cc
Merge pull request #6 from ChiWang/master

add metadata update IOSvc，some changes in data buffer