message: update changelog for v0.27.0
diff: @@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  +## [0.27.0] - 2021-01-15
  +### Changed
  + - plugin system changed to require a factory function instead of a singleton object ([#272](https://github.com/rokucommunity/brighterscript/pull/272))
  +
  +
  +
  ## [0.26.0] - 2021-01-14
  ### Added
  - proper XML AST support
  @@ -820,3 +826,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  [0.24.2]: https://github.com/rokucommunity/brighterscript/compare/v0.24.1...v0.24.2
  [0.25.0]: https://github.com/rokucommunity/brighterscript/compare/v0.24.2...v0.25.0
  [0.26.0]: https://github.com/rokucommunity/brighterscript/compare/v0.25.0...v0.26.0
  +[0.27.0]: https://github.com/rokucommunity/brighterscript/compare/v0.26.0...v0.27.0
  \ No newline at end of file
  