vapor/jwt-kit 4.0.0-rc.1.2

Give `AudienceClaim` more powers

on GitHub

This patch was authored and released by @gwynne.

• Allow AudienceClaim to represent more than one audience, per RFC 7519 § 4.1.3
• Add verifyIntendedAudience(includes:) method for conveniently verifying that the audience is the intended one.
• Add unit tests for new functionality.

Because the Value type of AudienceClaim is now [String] instead of String, this change is API-breaking!

This would normally require a semver-major update, but as the package is still in RC, I think it can scrape past with a semver-minor, especially since the change is to obey spec.