Feature: Expose `blob_mode` in Python `to_list` and `to_arrow`

SDK

Python

Description

We exposed it only to to_pandas in this PR: https://github.com/lancedb/lancedb/pull/3487

But we might want to do similar things for those other APIs.

For to_list() we might add a fourth option to get a Blob handle as done in https://github.com/lancedb/lancedb/pull/3578