Move class-specific functional descriptor definitions to their respective classes.

Bootloaders/CDC/Descriptors.c

Demos/Device/ClassDriver/AudioInput/Descriptors.c

Demos/Device/ClassDriver/AudioOutput/Descriptors.c

Demos/Device/ClassDriver/DualMIDI/Descriptors.c

Demos/Device/ClassDriver/DualVirtualSerial/Descriptors.c

Demos/Device/ClassDriver/MIDI/Descriptors.c

Demos/Device/ClassDriver/RNDISEthernet/Descriptors.c

Demos/Device/ClassDriver/VirtualSerial/Descriptors.c

...Device/ClassDriver/VirtualSerialMassStorage/Descriptors.c

Demos/Device/ClassDriver/VirtualSerialMouse/Descriptors.c

Demos/Device/LowLevel/AudioInput/Descriptors.c

Demos/Device/LowLevel/AudioOutput/Descriptors.c

Demos/Device/LowLevel/DualVirtualSerial/Descriptors.c

Demos/Device/LowLevel/MIDI/Descriptors.c

Demos/Device/LowLevel/RNDISEthernet/Descriptors.c

Demos/Device/LowLevel/VirtualSerial/Descriptors.c

LUFA/DoxygenPages/ChangeLog.txt

LUFA/DoxygenPages/MigrationInformation.txt

LUFA/Drivers/USB/Class/Common/AudioClassCommon.h

LUFA/Drivers/USB/Class/Common/CDCClassCommon.h