0.1.3

version 0.1.3

Changes since 0.1.2:

• The key keyword argument for blake3(), which enables the keyed mode.
• The context keyword argument for blake3(), which enables the key
  derivation mode.
• The length and seek keyword arguments for digest() and
  hexdigest(), which expose the XOF.
• The multithreading keyword argument for blake3() and update(), which
  enables Rayon-based multithreading.
• The "c" feature of the underlying Rust crate is now enabled by
  default, which brings in assembly implementations and AVX-512 support.