version 0.3.7

Changes since 0.3.6:

• BUGFIX: The C implementation was incorrect on big endian systems for inputs longer than 1024 bytes. This bug affected all previous versions of the C implementation. Little endian platforms like x86 were unaffected. The Rust implementation was also unaffected. @jakub-zwolakowski and @pascal-cuoq from TrustInSoft reported this bug: https://github.com/BLAKE3-team/BLAKE3/pull/118
• BUGFIX: The C build on x86-64 was producing binaries with an executable stack. @tristanheaven reported this bug: https://github.com/BLAKE3-team/BLAKE3/issues/109
• @mkrupcale added optimized implementations for SSE2. This improves performance on older x86 processors that don't support SSE4.1.
• The C implementation now exposes the blake3_hasher_init_derive_key_raw function, to make it easier to implement language bindings. Added by @k0001.