Add openssl and rust-crypto to benchmark

[Paxa]

Added more libs for benchmark

Running with 34 MB file:

% WITHOUT_SHA1SUM=1 cargo run --release ~/Downloads/kafka_2.11-0.9.0.1.tgz                       
    Finished release [optimized] target(s) in 0.24 secs
     Running `target/release/bench /Users/pavel/Downloads/kafka_2.11-0.9.0.1.tgz`
sha1: fc9ed9b663dd608486a1e56197d318c41813d326
sha1 crate: 381.99 MB/s
ring: SHA1:fc9ed9b663dd608486a1e56197d318c41813d326
ring crate: 236.68 MB/s
openssl: fc9ed9b663dd608486a1e56197d318c41813d326
openssl crate: 857.60 MB/s
crypto: fc9ed9b663dd608486a1e56197d318c41813d326
crypto crate: 375.14 MB/s

[newpavlov]

Instead of using SHA-1 implementation from rust-crypto it's better to compare with sha-1 crate from RustCrypto project.