fix(vocab): add imports for typescript generation

[mttrbrts]

Fixes an issue found in accordproject/concerto-codegen#22 (comment)

The concerto-vocabulary does not generate valid TypeScript type definitions because it was missing some imports.

I also bump some internal dependencies, migrate from concerto-tools to concerto-codegen

Author Checklist

• Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• Vital features and changes captured in unit and/or integration tests
• Commits messages follow AP format
• Extend the documentation, if necessary
• Merging to main from fork:branchname

[dselman]

Great!