Teleproto 1.9.0

Now available for Scala 2.12 and 2.13 ❤️

API / Feature enhancements

• Add an extension point for customizable JSON parser (#68 by @joroKr21)

Bug fixes

• Fix support for enums and sealed traits (#65 by @joroKr21)

Build changes

• Fix build (docs) (#70 by @joroKr21)

Depndency updates

• Update Scala versions and Publishing instructions (#60 by @joroKr21)
• Update sbt to 1.4.0 (#59 by @moia-pipeline)