Apply Octave coding style to audio project additions * libinterp/dldfcn/__player_audioplayer__.cc, libinterp/dldfcn/__recorder_audiorecorder__.cc, libinterp/dldfcn/audiodevinfo.cc, libinterp/dldfcn/audioinfo.cc, libinterp/dldfcn/audioread.cc, libinterp/dldfcn/audiowrite.cc, libinterp/dldfcn/player_class.cc, libinterp/dldfcn/player_class.h, libinterp/dldfcn/recorder_class.cc, libinterp/dldfcn/recorder_class.h, scripts/audio/@audioplayer/__get_properties__.m, scripts/audio/@audioplayer/audioplayer.m, scripts/audio/@audioplayer/display.m, scripts/audio/@audioplayer/get.m, scripts/audio/@audioplayer/isplaying.m, scripts/audio/@audioplayer/pause.m, scripts/audio/@audioplayer/play.m, scripts/audio/@audioplayer/playblocking.m, scripts/audio/@audioplayer/resume.m, scripts/audio/@audioplayer/set.m, scripts/audio/@audioplayer/stop.m, scripts/audio/@audioplayer/subsasgn.m, scripts/audio/@audioplayer/subsref.m, scripts/audio/@audiorecorder/__get_properties__.m, scripts/audio/@audiorecorder/audiorecorder.m, scripts/audio/@audiorecorder/display.m, scripts/audio/@audiorecorder/get.m, scripts/audio/@audiorecorder/getaudiodata.m, scripts/audio/@audiorecorder/getplayer.m, scripts/audio/@audiorecorder/isrecording.m, scripts/audio/@audiorecorder/pause.m, scripts/audio/@audiorecorder/play.m, scripts/audio/@audiorecorder/record.m, scripts/audio/@audiorecorder/recordblocking.m, scripts/audio/@audiorecorder/resume.m, scripts/audio/@audiorecorder/set.m, scripts/audio/@audiorecorder/stop.m, scripts/audio/@audiorecorder/subsasgn.m, scripts/audio/@audiorecorder/subsref.m: Apply consistent Octave indentation, spacing, and quoting styles. Strip trailing whitespace. Remove braces from one-line if-else blocks. Simplify some variable declarations.