Macro cipher::block_encryptor_bench

macro_rules! block_encryptor_bench {
    (Key: $cipher:ty, $block_name:ident, $blocks_name:ident $(,)? ) => { ... };
    (KeyIv: $cipher:ty, $block_name:ident, $blocks_name:ident $(,)? ) => { ... };
    ($init:block, $cipher:ty, $block_name:ident, $blocks_name:ident $(,)? ) => { ... };
}

Available on crate feature dev only.

Define block encryptor benchmark