Lmm/add seeds in more algorithms (#164)

* Provide better output in flaky tests

* feat: add seed parameter to multiple algorithms

* Update changelog

Co-authored-by: Luis Moreno <morenol@users.noreply.github.com>

src/rand.rs

@@ -0,0 +1,21 @@
+use ::rand::SeedableRng;
+#[cfg(not(feature = "std"))]
+use rand::rngs::SmallRng as RngImpl;
+#[cfg(feature = "std")]
+use rand::rngs::StdRng as RngImpl;
+
+pub(crate) fn get_rng_impl(seed: Option<u64>) -> RngImpl {
+    match seed {
+        Some(seed) => RngImpl::seed_from_u64(seed),
+        None => {
+            cfg_if::cfg_if! {
+                if #[cfg(feature = "std")] {
+                    use rand::RngCore;
+                    RngImpl::seed_from_u64(rand::thread_rng().next_u64())
+                } else {
+                    panic!("seed number needed for non-std build");
+                }
+            }
+        }
+    }
+}