Function parquet2::page::split_buffer_v2

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

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