message: Add nyc icon for .nycrc.json file
  This was added as a possible filename for the `nyc` configuration file in
diff: @@ -369,7 +369,7 @@ export const extensions: IFileCollection = {
  { icon: 'nsi', extensions: [], languages: [languages.nsis], format: FileFormat.svg },
  { icon: 'nuget', extensions: ['nupkg', 'nuspec', 'psmdcp'], format: FileFormat.svg },
  { icon: 'nunjucks', extensions: ['nunj', 'njs'], languages: [languages.nunjucks], format: FileFormat.svg },
  - { icon: 'nyc', extensions: ['.nycrc'], filename: true, format: FileFormat.svg },
  + { icon: 'nyc', extensions: ['.nycrc', '.nycrc.json'], filename: true, format: FileFormat.svg },
  { icon: 'objectivec', extensions: [], languages: [languages.objectivec], format: FileFormat.svg },
  { icon: 'objectivecpp', extensions: [], languages: [languages.objectivecpp], format: FileFormat.svg },
  { icon: 'ocaml', extensions: ['.merlin'], filename: true, languages: [languages.ocaml], format: FileFormat.svg },
  