Get rid of the `rand_core` rependency

Cargo.toml

@@ -12,7 +12,6 @@ thiserror = "*"
 rand = "*"
 bimap = "*"
 enum_dispatch = "*"
-rand_core = "*"
 rand_chacha = "*"
 
 [dev-dependencies]

src/tools.rs

@@ -4,7 +4,7 @@ use crate::params;
 use crate::params::ParamsTrait;
 use ndarray::prelude::*;
 use rand_chacha::ChaCha8Rng;
-use rand_core::SeedableRng;
+use rand_chacha::rand_core::SeedableRng;
 
 pub struct Trajectory {
     pub time: Array1<f64>,

tests/params.rs

@@ -2,7 +2,7 @@ use ndarray::prelude::*;
 use rustyCTBN::params::*;
 use std::collections::BTreeSet;
 use rand_chacha::ChaCha8Rng;
-use rand_core::SeedableRng;
+use rand_chacha::rand_core::SeedableRng;
 
 mod utils;