Implement Fixed-size List Layout

Implement read and write of the [Fixed-size List Layout](https://arrow.apache.org/docs/format/Columnar.html#fixed-size-list-layout) and verify against integration tests.

Start with the Apache Arrow Fixed-size List Layout specification linked in the issue, then locate the existing list layout read and write paths in the repository. Run or inspect the integration tests while implementing both operations; done means the implementation is verified against those tests.

Written by the indexing model from the issue text.