public static Array<FileHandle> sortFiles (FileHandle[] files, Comparator<FileHandle> comparator) {
		return sortFiles(files, comparator, false);
	}
public static Array < FileHandle > sortFiles ( FileHandle [ ] files , Comparator < FileHandle > comparator ) { return sortFiles ( files , comparator , false ) ; }
Sorts file list, using this rules: directories first, sorted using provided comparator, then files sorted using provided comparator.
@param files list to sort
@param comparator comparator used to sort files and directories list
@return sorted file list