Multiple BA_CORE_API for App compilation under Windows

App/CMakeLists.txt

App/src/DrawHelper.cpp

App/src/main.cpp

Core/Algorithms/inc/DWBADiffuseReflection.h

Core/Algorithms/inc/ISimulation.h

Core/Algorithms/inc/LayerSpecularInfo.h

Core/Algorithms/inc/SpecularMagnetic.h

Core/Algorithms/inc/SpecularMatrix.h

Core/FormFactors/inc/FormFactorDWBA.h

Core/FormFactors/inc/FormFactorDWBAConstZ.h

Core/FormFactors/inc/FormFactorDWBAPol.h

Core/FormFactors/inc/FormFactorDWBAPolConstZ.h

Core/FormFactors/inc/FormFactorDecoratorDebyeWaller.h

Core/FormFactors/inc/FormFactorDecoratorFactor.h

Core/FormFactors/inc/FormFactorDecoratorMaterial.h

Core/Samples/inc/ISampleVisitor.h

Core/Tools/inc/Convolve.h

Core/Tools/inc/CoreOptionsDescription.h

Core/Tools/inc/MathFunctions.h

Core/Tools/inc/MessageService.h