fix spelling errors

MSVC/config.h

bin/dbus/cx.ring.Ring.CallManager.xml

bin/dbus/cx.ring.Ring.ConfigurationManager.xml

bin/restcpp/restclient.cpp

src/account_schema.h

src/dring/configurationmanager_interface.h

src/dring/datatransfer_interface.h

src/dring/dring.h

src/fileutils.h

src/generic_io.h

src/ice_transport.h

src/manager.cpp

src/manager.h

src/media/audio/audiobuffer.h

src/media/audio/audiorecord.h

src/media/audio/opensl/audio_player.cpp

src/media/audio/ringbuffer.h

src/media/audio/ringbufferpool.h

src/media/audio/tonecontrol.h

src/media/media_codec.h