v3.1.0

Added distribution-related nodes:

Distribution nodes

• Ptd Bernoulli
• Ptd Beta
• Ptd Binomial
• Ptd Categorical
• Ptd Chi2
• Ptd Exponential
• Ptd Gamma
• Ptd Normal
• Ptd Poisson
• Ptd Student T
• Ptd Uniform

Method nodes

• Ptdm Cdf (Coverage for distributions is limited).
• Ptdm Log Prob
• Ptdm Pdf
• Ptdm Pmf
• Ptdm Sample

You create a distribution node and plug into each method node for desired operation.