Evaluate Eytzinger layout for speeding up symbolization

[d-e-s-o]

See

• https://en.algorithmica.org/hpc/data-structures/binary-search/#eytzinger-layout
• https://www.bazhenov.me/posts/faster-binary-search-in-rust/

Last I checked there were plenty of Rust crates with support for creating this layout. We should check if we can improve performance in a significant manner this way.