chore: checkpoint before Python removal

vendor/blake2/benches/mod.rs

@@ -0,0 +1,22 @@
+#![feature(test)]
+extern crate test;
+
+use blake2::{Blake2b512, Blake2s256};
+use digest::bench_update;
+use test::Bencher;
+
+bench_update!(
+    Blake2b512::default();
+    blake2b512_10 10;
+    blake2b512_100 100;
+    blake2b512_1000 1000;
+    blake2b512_10000 10000;
+);
+
+bench_update!(
+    Blake2s256::default();
+    blake2s256_10 10;
+    blake2s256_100 100;
+    blake2s256_1000 1000;
+    blake2s256_10000 10000;
+);