N

Closes #43

group.dart ``` import 'package:webfeed/domain/media/category.dart'; import 'package:webfeed/domain/media/content.dart'; import 'package:webfeed/domain/media/credit.dart'; import 'package:webfeed/domain/media/rating.dart'; import 'package:webfeed/domain/media/thumbnail.dart'; import 'package:webfeed/domain/media/title.dart'; import 'package:webfeed/domain/media/description.dart'; import 'package:webfeed/domain/media/community.dart'; import 'package:webfeed/util/xml.dart'; import 'package:xml/xml.dart'; class Group { final Title? title; final List?...