Holtsmark Distribution Double Precision Implement
See: HoltsmarkDistribution
Double-Double Precision: DoubleDoubleStatistic
LandauDistributionFP64 α=1, β=1
HoltsmarkDistributionFP64 α=3/2, β=0
MapAiryDistributionFP64 α=3/2, β=1
SaSPoint5DistributionFP64 α=1/2, β=0