Added observability to the DependencyAudit contract

[janezpodhostnik]

Description

Added some scripts and convenience methods for the observability of the DependencyAudit contract.

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For contributor use:

• Targeted PR against main branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the standards mentioned here.
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[joshuahannan]

Looks fine! Just want a bit more commenting and documentation

[joshuahannan]

Could you add some comments to these functions to explain what they do? Hard to understand if you're not already familiar with it