Added variance to MinimumEffectiveSamplesLikelihood
Closes #5 (closed) . Adds the variance to the _compute_per_event_ln_bayes_factors
method of MinimumEffectiveSamplesLikelihood
to be compatible with the current version of gwpopulation. Even though this class still is intended to assume a threshold on N_eff, users may still want the variance returned for the hyperposterior samples.
Edited by Jacob Golomb