message: update changelog for v0.49.0
diff: @@ -6,6 +6,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  +## [0.49.0](https://github.com/rokucommunity/brighterscript/compare/v0.48.1...v0.49.0) - 2022-05-02
  +### Added
  + - allow interfaces and enums as function param types ([#580](https://github.com/rokucommunity/brighterscript/pull/580))
  + - Transpile files added by plugins after start of transpile cycle ([#578](https://github.com/rokucommunity/brighterscript/pull/578))
  + - add AstEditor to `beforeProgramTranspile` and `afterProgramTranspile` plugin events ([#576](https://github.com/rokucommunity/brighterscript/pull/576))
  +
  +
  +
  ## [0.48.1](https://github.com/rokucommunity/brighterscript/compare/v0.48.0...v0.48.1) - 2022-04-14
  ### Fixed
  - prevent duplicate `CreateObject` validations showing one for each affected scope ([#568](https://github.com/rokucommunity/brighterscript/pull/568))
  