v0.3.7 Duration and Null support

Thanks @ananis25 for implementing Lance support for Duration and Null arrow arrays!

We've also completed the core implementation of cosine distance (with SIMD) and refactored the distance functions to be pluggable. Next release will expose this as a public API in Rust and Python

What's Changed

• support arrow-rs duration type in lance by @ananis25 in #590
• Don't inherit the index_section if mode is Overwrite by @changhiskhan in #592
• [Rust] Cosine Distance by @eddyxu in #595
• Refactor L2 distance into a separate mod by @eddyxu in #596
• support arrow-rs null array in lance by @ananis25 in #594
• refactor Scanner::try_into_stream by @changhiskhan in #597

Full Changelog: v0.3.6...v0.3.7