User:Fz-29/Add a hierarchy type to the Cargo extension

Project Phabricator task: T161034

Proposal : T161609

Preparation Tasks

[X] Understand MediaWiki, Cargo Extension and Page Forms Extension.
[X] Understand how to contribute at Wikimedia and learn various conventions.
[X] Perform micro-task T160687 and submit a few patches.
[X] Understand Cargo Extension architecture for its data storage.
[ ] Explore various implementations for storing hierarchy data.

Community Bonding Period

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