Feature: RleDictionary decoding for parquet

[ritchie46]

This was a a parquet file that was shared on polars. Copied from pola-rs/polars#2448.

I believe the original file was created with pyarrow.

import polars as pl
import requests
from io import BytesIO

url = "https://github.com/netenglabs/suzieq/blob/master/tests/data/nxos/parquet-out/routes/sqvers=2.0/namespace=nxos/hostname=dcedge01/ae4052489ad24989b6bee9944721d4e8.parquet?raw=true"
response = requests.get(url)
image_data = BytesIO(response.content)

df = pl.read_parquet(image_data)

which results in the same error as above:

exceptions.ArrowErrorException: NotYetImplemented("Decoding \"RleDictionary\"-encoded optional any pages is not yet implemented for Binary")