Fixed virial terms for SMAC

regtest/crystallization/rt-smac/deriv.reference

regtest/crystallization/rt-splane/deriv.reference

src/adjmat/AlignedMatrixBase.cpp

src/adjmat/SMACMatrix.cpp

src/crystallization/InterMolecularTorsions.cpp

src/crystallization/OrientationSphere.cpp

src/crystallization/SMAC.cpp