Jens changes - common base class for the Raw data calibration

Jens changes - common base class for the Raw data calibration

AliTPCCalibCE.cxx.diff          Include usage of base class, add possibility to set peak integration range for COG determination
AliTPCCalibCE.h.diff            Include usage of base class, add possibility to set peak integration range for COG determination
AliTPCCalibPedestal.cxx.diff    Include usage of base class
AliTPCCalibPedestal.h.diff      Include usage of base class
AliTPCCalibPulser.cxx.diff      Include usage of base class, add possibility to set peak integration range for COG determination
AliTPCCalibPulser.h.diff        Include usage of base class, add possibility to set peak integration range for COG determination
AliTPCCalibRawBase.cxx          Base class for raw data processing, to be used in the basic calibration components
AliTPCCalibRawBase.h            Base class for raw data processing, to be used in the basic calibration components
AliTPCcalibLaser.cxx.diff       Added common IROC/OROC linear fit model, added rotation of associated track the laser track ref. frame
libTPCbase.pkg.diff             Added raw data calibration base class
TPCbaseLinkDef.h.diff           Added raw data calibration base class