Function parquet2::page::split_buffer_v2

pub fn split_buffer_v2(
    buffer: &[u8],
    rep_level_buffer_length: usize,
    def_level_buffer_length: usize
) -> Result<(&[u8], &[u8], &[u8])>

Splits the page buffer into 3 slices corresponding to (encoded rep levels, encoded def levels, encoded values) for v2 pages.