Add metadata dag builder

[clostao]

Added metadata dag builder abstracting the node building through builders parameter

[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 3 🔵🔵🔵⚪⚪

🧪 PR contains tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Code Organization Consider using a more structured approach or pattern for defining and exporting builders to improve maintainability and readability. Function Complexity The function createBufferIPLDDag seems to be doing multiple things which could be broken down into smaller, more focused functions. Documentation Some functions are missing comprehensive documentation comments that explain parameters and return types, which are essential for maintainability.

[github-actions]

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[marc-aurele-besner]

Can you also add createMetadataIPLDDag to the Auto-Drive README?

[marc-aurele-besner]

Awesome