class members as pointers to the class itself, or a vector<T>

[vkhristenko]

below is an example of that

StreamerInfo for class: CSCSegment, version=11, checksum=0x98eed67
  RecSegment     BASE            offset=  0 type= 0                     
  vector<CSCRecHit2D> theCSCRecHits   offset=  0 type=300 ,stl=1, ctype=61,                     
  Point3DBase<float,LocalTag> theOrigin       offset=  0 type=62 in chamber frame - the GeomDet local coordinate system
  Vector3DBase<float,LocalTag> theLocalDirection offset=  0 type=62 in chamber frame - the GeomDet local coordinate system
  CLHEP::HepSymMatrix theCovMatrix    offset=  0 type=62 the covariance matrix
  double         theChi2         offset=  0 type= 8                     
  bool           aME11a_duplicate offset=  0 type=18                     
  vector<CSCSegment> theDuplicateSegments offset=  0 type=300 ,stl=1, ctype=61, ME1/1a only