Create builder methods for VA spec objects

[ahwagner]

Feature description

Write functions to generate VA-Spec objects associated with common community frameworks.

Use case

Implementers want an easy way to spin out evidence from common community frameworks to build VA Spec objects–simplifying what they need to learn and get started for common cases.

Proposed solution

Create a new extras.builders package with specific modules containing evidence codes, classifications, and evidence items from common frameworks (such as those specified in our models) populating fields in the way we would expect. These modules would use our existing pydantic models for these frameworks to ensure consistency.

Alternatives considered

No response

Implementation details

No response

Potential Impact

No response

Additional context

No response

Contribution

Yes, I can create a PR for this feature.

[korikuzma]

@ahwagner in this PR, can you also update the Features section in the README?

I’m not sure if you’ll have time, but it would be really nice to also have a Jupyter Notebook with this work for #8 .

[korikuzma]

In VRS-Python, we’re wanting to rename the extras dependency. We should do the same here and probably just use builders