Implement an option in TStreamerInfo::Build when processing char*

Assuming a class Event with the following members:
  Int_t            fNvertex;         //Number of vertices in Event
  char            *fTracksInVertex;  //[fNvertex] number of tracks for each vertex
  char            *fEventName;       // a string

ROOT I/O will assume that fEventname is terminated by a null character and that the
member contains a string.
fTracksInVertex will be processed like Int_t*, Float_t* with a number of elements
in the array indicated in the comment field.
fTracksInVertex may contain one or more 0s.


git-svn-id: http://root.cern.ch/svn/root/trunk@3339 27541ba8-7e3a-0410-8455-c3a389f83636