Changes for

Changes for

#102898 Fixes for newer ROOT
HLT/TPCLib/comp/AliHLTTPCDataCompressionIDMap.h:
=====================================
Make AliIDMapEntry public since newer ROOT does not allow dictionary
generation for private sub-classes.
#102897 Fixes for newer ROOT
HLT/BASE/AliHLTComponentHandler.h:
=====================================
Make AliHLTLibHandle public - newer ROOT cannot make dictionaries for
private sub-classes.

HLT/BASE/HLTbaseLinkDef.h:
=====================================
Fix up schema evolution code for newer ROOT which does not give
privileged access to data members in the streamers.
#102893 Fixes for newer ROOT
STEER/ESDLinkDef.h:
=====================================
Fix up schema evolution code for newer ROOT which does not give
privileged access to data members in the streamers.

STEER/STEERBase/AliTRDPIDParams.h:
=====================================
Preprocessor guard for ROOT Cling transition, which does not allow
dictionary generation for private sub-classes.

STEER/STEERBaseLinkDef.h:
=====================================
Preprocessor guard for ROOT Cling transition, which does not allow
dictionary generation for private sub-classes.

EVGEN/AliGenParam.cxx:
=====================================
Preprocessor switch for newer ROOT which does not define

TF1::Integral(Double_t,Double_t,Double_t*,Double_t)

but

TF1::Integral(Double_t,Double_t,Double_t)
#102883 A patch for HLT code
HLT/BASE/AliHLTGlobalTriggerDecision.h:
=====================================
Make MarkInputObjectAsOwned public for schema evolution

HLT/BASE/AliHLTScalars.h:
=====================================
Make GetScalars public for schema evolution

HLT/trigger/AliHLTGlobalTriggerWrapper.cxx:
=====================================
Add preprocessor switches for newer ROOT that uses Cling
#102881 Patch for some code
EVGEN/AliGenEMCocktail.cxx:
=====================================
Add preprocessor switch in preparation for newer ROOT

STEER/STEERBase/AliMCEventHandler.cxx:
=====================================
In case a subsidary handler returns a null pointer for the MCEvent, do
not try to add that event to the parent event