Log Message:
schismtracker: update to 20211116

                            Schism Tracker 20211116

   Summary of changes since 20211115 release:

     * Fix macOS dylib path in build artifacts
     * Reset filter when previewing different instrments
     * Fix ST3 GUS/SB detection on big-endian platforms

                            Schism Tracker 20211115

   Summary of changes since 20210525 release:

     * Add warning for lost patterns when saving MOD files
     * Fix S3M tracker identification bug
     * Add support for reading OPL instruments from MPTM files
     * Allow loading ModPlug volume column panning in S3M files
     * Reset mixing volume to 48 for S3Ms made with GUS
     * Strip zero-param commands that only have memory in IT from MOD/XM
       files when loading
     * Fix depth of instrument pitch-pan separation
     * Fix incorrect position calculation after reaching end of ping-pong
       loops
     * Add rudimentary detection for SoundTracker MODs in file browser
     * Apply pitch/pan separation as part of instrument panning