* don't reset filepath used to open file picker dialog for SaveFileDialog
* don't reset filepath used to open filepicker for OpenProject dialog
* fixed non-native file picker starts in wrong directory if provided with filename to open (instead of directory)
* fixed non-native dialog displays machines root directory if empty path is provided
* added and used QtFilesAndDirectoriesDialog in file list boxes for windows and linux
* implemented allowing to select multiple entries which adds more rows to the path listbox
mlangkabel