class HTofRec: public HReconstructor

_HADES_CLASS_DESCRIPTION

 HTofRec
 In case of experiments where there exists no start hit and the TOF of the
 particles has to be recalculated, the tof variable(getTof()) of all classes derived from
 HBaseTrack and HKickTrack will be overwritten by a this class which recalculates the tof.
 To mark those objects as changed one can ask with getFlag(). The result should be
 1 or 2 depending on the method which has been used and 0 if it has not been changed.
 Anyhow the original tof can be retrieved direct from the HTofHit referenced by
 tofindex (getTofHitInd()). The flag itself is decoded in the tofindex, but will be
 hidden from the user by the getTofHitInd() function.

 To setup the constructor  call HTofRec(Text_t *name,Text_t *title, const Char_t *select, const Char_t *track),
 where select contains the key words for configuration (just "," separated list)
    nospline   : switch of spline
    nohires    : switch of high resolution kickplane
    nolowres   : switch of low  resolution kickplane
    nolowresB  : switch of low  resolution kickplaneB
    nork       : switch of Runge Kutta tracking
    norich     : switch of rich mode
    debug      : switch on debug mode
    ntuple     : switch on create,fill and write ntuple for debugging
    chiin      : switch on the chi2>-1 cut for inner MDC segments
    chiout     : switch on the chi2>-1 cut for outer MDC segments
    common     : use spline as reconstructor for all the trackings
    skip       : skip event in DST if start is not reconstructed
    simulation : swith on simulation mode

 if common mode is switched one, "track" is the chosen tracking algorythm for globat tof reconstruction:
    spline     : spline
    lowres     : low resolution kickplaneB
    hires      : high resolution kickplane
    rk         : Runge Kutta tracking

 defaults (empty string) are:
   spline on
   low  resolution kickplane   ON
   low  resolution kickplaneB  ON
   high resolution kickplane   ON
   RungeKutta                  ON
   fRichMode                   ON
   field correction            1.0
   debug mode                  OFF
   ntuple                      OFF
   chi2 inner cut              OFF
   chi2 outer cut              OFF
   simulation mode             OFF
   skip event                  OFF
   common                      OFF

 Usage:

   TofRec *tofrec = new HTofRec("tofreconstructor","tofreconstructor",option,track);
   tofrec->setRichParams(0.674189,2.04904,0.,1.82966,5.);
   tofrec->setQualityRichParams(200.,4.,2.8,5);
   HTaskSet * tofrectask = new HTaskSet("","");
   tofrectask->connect(tofrec);
   masterTaskSet->add(tofrec);