Upgrade to YAML vocabulary

[msporny]

This PR upgrades to the YAML vocabulary tool and removes the old library files.

[iherman]

The issue was discussed in a meeting on 2022-11-02

• no resolutions were taken

View the transcript

1.1. IssuanceDate and ExpirationDate (pr vc-data-model#964)

See github pull request vc-data-model#964.

Manu Sporny: simultaneously ivan raised a PR to update vocabularies.

See github pull request vc-data-model#968.

Manu Sporny: and they conflict with one another.
… Ivan and Mahmoud you have to talk to each other.
… that is the only thing that keeps those PRs from being merged.

Ivan Herman: my PR does two things. one yaml is now the language and the other thing it also includes the changes of property names.
… should have made that more clear.
… as far as i could understand it duplicates what Mahmoud has done.
… apologies for that.
… that is where we are.

Manu Sporny: that is great because we have more people doing PRs.

[msporny]

Now that #964 is cleared, merging this PR.

[msporny]

Substantive, multiple reviews, no changes requested, no objections, merging.