1.0.0-alpha.49

Changed

• Update for brighterscript v1.0.0-alpha.49 (#169)
• upgrade to brighterscript@1.0.0-alpha.49. Notable changes since 1.0.0-alpha.48:
  • Adds TypeStatement for declaring new types (#1597)
  • Adds Inline interfaces (#1591)
  • Make Invalid compatible with typed arrays (#1596)
  • Limit scope Validation (#1586)
  • Interface extending node includes callfuncs (#1585)
  • Fix validation exception when calling roFunction (#1588)
  • Remove unused util functions (#1565)
  • Remove zip and sideload (#1562)
  • Fix MaskGroup.maskUri type (#1559)