[TASK] Initial code for backend module

Classes/Controller/Backend/NewsController.php

Classes/Service/Backend/Utility.php

Classes/ViewHelpers/Backend/ControlViewHelper.php

Classes/ViewHelpers/Backend/EditOnClickViewHelper.php

Classes/ViewHelpers/Backend/IconViewHelper.php

...wHelpers/Backend/Widget/Controller/PaginateController.php

Classes/ViewHelpers/Backend/Widget/PaginateViewHelper.php

Configuration/TypoScript/Backend/constants.txt

Configuration/TypoScript/Backend/setup.txt

Resources/Private/Backend/Layouts/Default.html

Resources/Private/Backend/Partials/ButtonBar.html

Resources/Private/Backend/Templates/News/Index.html

ext_localconf.php

ext_tables.php