Enable backtracking of old PSGC barangay.json files

[bendlikeabamboo]

Problem

Currently, the package only exposes the latest barangay.json file. Users who want to access historical data must redownload older package versions, which is inconvenient and not user-friendly.

Proposed Solution

Introduce a mechanism to allow users to backtrack and retrieve previous versions of the barangay.json file directly within the package or via a documented interface. Possible approaches include:

• Bundling previous versions of barangay.json with the package and providing an API for access.
• Hosting previous versions in a remote repository and exposing a method to fetch by date or version.
• Documenting a recommended workflow for accessing historical files without needing to reinstall older package versions.

Benefits

• Makes historical data more accessible.
• Improves user experience for researchers and developers needing time-based snapshots.
• Reduces friction for version analysis and debugging.

Request

Please consider implementing a feature to allow access to historical barangay.json files at specific points in time, within the package or via an official retrieval method.