seqhasher v.1.1.0

Updates:

• [new] support multiple hash algorithms (e.g., --hash sha1,xxhash)
• [new] added nthash and blake3 algorithms
• [upd] nicer help message (seqhasher --help)
• [new] added short flag support (e.g., --hash or -H)
• [new] added continuous integration tests

Full Changelog: 1.0.0...1.1.0