FEAT #7737 Template file

modules/convert/Controllers/ProcessConvertController.php

modules/convert/Controllers/ProcessFulltextController.php

modules/convert/Controllers/ProcessThumbnailsController.php

modules/templates/xml/datasources.xml

src/app/docserver/controllers/DocserverController.php

src/app/resource/controllers/StoreController.php

src/app/template/controllers/TemplateController.php

src/app/template/models/TemplateModelAbstract.php

src/app/user/controllers/UserController.php