message: update changelog for v0.51.2
diff: @@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  +## [0.51.2](https://github.com/rokucommunity/brighterscript/compare/v0.51.1...v0.51.2) - 2022-05-26
  +### Fixed
  + - allow enums and interfaces as class field types ([#602](https://github.com/rokucommunity/brighterscript/pull/602))
  +
  +
  +
  ## [0.51.1](https://github.com/rokucommunity/brighterscript/compare/v0.51.0...v0.51.1) - 2022-05-26
  ### Fixed
  - allow enums and interfaces as function return types ([#601](https://github.com/rokucommunity/brighterscript/pull/601))
  