Fix TWI_ReadPacket() not releasing the bus correctly after all data transferred.
Make TWI_SendByte() and TWI_ReceiveByte() non-inline to reduce compiled binary size.
Changed the reports in the GenericHID device demos to control the board LEDs, to reduce user confusion over the callback routines.
Fixed swapped TWI_ADDRESS_READ and TWI_ADDRESS_WRITE values.
Fixed TWI_ReadPacket() not releasing the TWI bus on read completion.