OESetForceFieldDummyAtom can be used to ignore dummy atoms in
forcefield calculations if only van der Waals and Coulombic components are included.
Dummy atoms are ignored in MMFF force fields and cannot be used in intramolecular components.
OESzybki will no longer crash when
OESz::OESzybkiOptions::SetForceFieldType is called with the argument
OEForceFieldType_MMFFS_AMBER and then followed by
a call of OESz::OESzybkiOptions::SetUseCurrentCharges with true.