public class PotentialMasterLrc
Collects potentials used for long-range correction.
One instance of this class is added to the PotentialMaster of
a Simulation when the first Potential0Lrc class is instantiated.
All subsequently created Potential0Lrc classes are added to this instance.
Performs given PotentialCalculation on all LRC potentials added to this group.
Checks that group is enabled, box is not null, that it has lrcEnabled,
and that the given IteratorDirective has includeLrc set to true; if all
are so, calculation is performed.