Added support to the MIDI Class drivers for packed data, where multiple MIDI events are packed into a single USB packet. Added new MIDI Class driver flush routines to override packing behaviour.

Demos/Host/LowLevel/VirtualSerialHost/ConfigDescriptor.c

@@ -158,7 +158,7 @@ uint8_t ProcessConfigurationDescriptor(void)
 			}
 			else
 			{
-				/* Only configure the OUT data pipe if the data endpoints haev not shown to be bidirectional */
+				/* Only configure the OUT data pipe if the data endpoints have not shown to be bidirectional */
 				if (!(Pipe_IsEndpointBound(EndpointData->EndpointAddress)))
 				{
 					/* Configure the data OUT pipe */