feat: Add space for Jupyter Notebooks, including a PoC on how to export GraphQL SDL to protobuf via a selection query mechanism

Signed-off-by: JD Alvarez <[email protected]>

Author: jdacoello

examples/notebooks/README.md

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+# Notebooks
+
+This folder is dedicated to host [Jupyter](https://jupyter.org) Notebooks that either exemplify the use of existing tools or prototype a conceptual solution for a desired feature.
+They serve as demostration only.