various API uniformization

sampling/Cargo.toml

@@ -4,5 +4,6 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+rand_distr = {workspace = true}
 rand_chacha = { workspace = true }
 rand_core = { workspace = true }

sampling/src/distributions.rs

@@ -0,0 +1,7 @@
+use rand_distr::{Distribution, Normal, Binomial};
+
+pub enum Distributions{
+    Binonial(Binomial),
+    Normal(Normal<f64>),
+    Ternary()
+}