Arrow Parquet BinaryArray Writer Ignores LevelInfo Indices

[tustvold]

Describe the bug

The functions generated by def_get_binary_array_fn and used by the parquet writer, ignore the indices attached to the LevelInfo. This will result in them potentially writing the too many values if a parent StructArray contains a null, or incorrect values if a parent ListArray contains a non-empty null slice.

To Reproduce

TBC

Expected behavior

The functions should respect the indices on LevelInfo