expand fsspec downstream connectors (#1777)
### Description
Replacing PR
[1383](https://github.com/Unstructured-IO/unstructured/pull/1383)
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Co-authored-by: Trevor Bossert <alanboss@gmail.com>
Co-authored-by: ryannikolaidis <1208590+ryannikolaidis@users.noreply.github.com>
Co-authored-by: rbiseck3 <rbiseck3@users.noreply.github.com>
