1.5.8

• Return private key attributes on key pair generation.
• Update RSA signing code and add conditional check for supported iOS/osx platforms.
• Enabled PKeyAuth via UserAgent String on MacOS
• Added an API for both iOS and MacOS for returning a WKWebView config setting with default recommended settings for developers.
• Add missing functionality to MSIDAssymetricKeyPair to match Djinni Interface
• Update changelogs.txt pipeline check