* Add docs to download overture places data & ollama model
* Hit local overture parquet files
* Add osx gitignore
* Add .env.example
* Make overture data source selectable using .env
* Add pytest marker to set right ENV vars during CI
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Co-authored-by: Daniel Wiesmann <yellowcap@users.noreply.github.com>
Soumya Ranjan Mohanty