Core FF: moved file and renamed class -> IFormFactorPolyhedron

Core/HardParticle/FormFactorAnisoPyramid.cpp

Core/HardParticle/FormFactorAnisoPyramid.h

Core/HardParticle/FormFactorBox.h

Core/HardParticle/FormFactorCantellatedCube.cpp

Core/HardParticle/FormFactorCantellatedCube.h

Core/HardParticle/FormFactorCone6.cpp

Core/HardParticle/FormFactorCone6.h

Core/HardParticle/FormFactorCuboctahedron.cpp

Core/HardParticle/FormFactorCuboctahedron.h

Core/HardParticle/FormFactorDodecahedron.cpp

Core/HardParticle/FormFactorDodecahedron.h

Core/HardParticle/FormFactorIcosahedron.cpp

Core/HardParticle/FormFactorIcosahedron.h

Core/HardParticle/FormFactorPrism3.h

Core/HardParticle/FormFactorPrism6.h

Core/HardParticle/FormFactorPyramid.cpp

Core/HardParticle/FormFactorPyramid.h

Core/HardParticle/FormFactorTetrahedron.cpp

Core/HardParticle/FormFactorTetrahedron.h

Core/HardParticle/FormFactorTriangle.h