code: function (projectDir)
    {
      "use strict";
      const packageJson = readPackageJson(projectDir);
      const extracted = extractVendors(packageJson);
  
      return extracted.filter(function (packageName) { return startsWith(packageName, '@deskpro/'); });
    }
docs: Scans the package.json manifest for deskpro packages and returns their names
  
  @param projectDir
  @return {Array<String>}