StringLine.hxx moved in external folder

...es/external/source/Model/Equivalence/EQM_FBR_MLP_Keff.cxx

branches/external/source/Model/Equivalence/EQM_MLP_Kinf.cxx

.../external/source/Model/Equivalence/EQM_MLP_PWR_MOxEUS.cxx

...xternal/source/Model/Equivalence/EQM_PWR_FixedContent.cxx

...hes/external/source/Model/Equivalence/EQM_PWR_MLP_MOX.cxx

.../external/source/Model/Equivalence/EQM_PWR_MLP_MOX_Am.cxx

...hes/external/source/Model/Equivalence/EQM_PWR_POL_UO2.cxx

branches/external/source/Model/Irradiation/IM_Matrix.cxx

branches/external/source/Model/Irradiation/IM_RK4.cxx

branches/external/source/Model/XS/XSM_CLOSEST.cxx

branches/external/source/Model/XS/XSM_MLP.cxx

branches/external/source/external/StringLine.hxx

branches/external/source/include/StringLine.hxx

branches/external/source/src/DecayDataBank.cxx

branches/external/source/src/EquivalenceModel.cxx

branches/external/source/src/EvolutionData.cxx

branches/external/source/src/IrradiationModel.cxx

branches/external/source/src/Makefile

branches/external/source/src/XSModel.cxx

branches/external/source/src/ZAIHeat.cxx