DD File Lister: New sort option in the config file: PER_DIR_CFG, which has Synchronet sort the file list according to the file directory's configuration

DD File Lister: New sort option in the config file: PER_DIR_CFG, which has Synchronet sort the file list according to the file directory's configuration (SCFG > File Areas > library > File Directories > dir > Advanced Options > Sort Value and Direction). This is now the default.