Merge branch 'FFPrism6' into develop

App/inc/TestFormFactors.h

App/src/TestFormFactors.cpp

Core/FormFactors/inc/FormFactorBox.h

Core/FormFactors/inc/FormFactorCone.h

Core/FormFactors/inc/FormFactorCone6.h

Core/FormFactors/inc/FormFactorFullSpheroid.h

Core/FormFactors/inc/FormFactorPrism6.h

Core/FormFactors/inc/FormFactorTetrahedron.h

Core/FormFactors/inc/FormFactors.h

Core/FormFactors/src/FormFactorCone.cpp

Core/FormFactors/src/FormFactorCone6.cpp

Core/FormFactors/src/FormFactorFullSpheroid.cpp

Core/FormFactors/src/FormFactorPrism6.cpp

Core/FormFactors/src/FormFactorTetrahedron.cpp

Tests/FunctionalTests/TestCore/CMakeLists.txt

...FunctionalTests/TestCore/FormFactors/FTestFormFactors.cpp

...s/FunctionalTests/TestCore/FormFactors/FTestFormFactors.h

Tests/ReferenceData/BornAgain/isgi_reference_box_BA.ima.gz

Tests/ReferenceData/BornAgain/isgi_reference_cone6_BA.ima.gz

Tests/ReferenceData/BornAgain/isgi_reference_cone_BA.ima.gz