[FEATURE] Implement a sorting setting (values: date, positionInTree)

Classes/Controller/AbstractController.php

Classes/Controller/LatestController.php

Classes/Controller/ListByCategoryController.php

Classes/Controller/NewsFeedController.php

Classes/Controller/OverviewController.php

Classes/Controller/PageBrowserController.php

Classes/Controller/SingleViewController.php

Classes/Domain/Model/Category.php

Classes/Domain/Model/CategoryAndNews.php

Classes/Domain/Model/News.php

Classes/Domain/Repository/CategoryRepository.php

Classes/Domain/Repository/NewsRepository.php

Configuration/TypoScript/Frontend/setup.txt