- an N(0,1) sampler is a building block for several other samplers
- there are multiple implementations for sampling from an N(0,1)
it is proposed to create a NormalizedGaussianSampler interface (that extends ContinuousSampler).
Then, a new GaussianSampler class can be defined, that will sample from an N(mu,sigma), whose constructor's argument will be
An implementation of NormalizedGaussianSampler will be BoxMullerNormalizedGaussianSampler (and consequently the current BoxMullerGaussianSampler will be deprecated).