many speed improvement and memory gestion

source/trunk/include/CLSSFacility.hxx

source/trunk/include/CLSSObject.hxx

source/trunk/include/DataBank.hxx

source/trunk/include/EvolutionData.hxx

source/trunk/include/FabricationPlant.hxx

source/trunk/include/Pool.hxx

source/trunk/include/ZAI.hxx

source/trunk/src/CLASS.cxx

source/trunk/src/CLSSFacility.cxx

source/trunk/src/CLSSObject.cxx

source/trunk/src/DataBank.cxx

source/trunk/src/EvolutionData.cxx

source/trunk/src/FabricationPlant.cxx

source/trunk/src/Pool.cxx

source/trunk/src/Reactor.cxx

source/trunk/src/Storage.cxx