Version 5.0.28 Custom baud rate support

New value of argument in function ReaderOpenEx
*                      Custom baud rate
 *                      "BR_1000000"				: 1 Mbps
 *						"BR_115200"					: 115200 bps
 * 						"BR_250000"					: 250000 bps
 *						"BR_9600"					: 9600 bps
 * 						"BR_19200"					: 19200 bps
 * 						"BR_38400"					: 38400 bps
 * 						"BR_57600"					: 57600 bps
 *						"BR_230400"					: 234000 bps
 *						"BR_460800"					: 460800 bps
 *						"BR_500000"					: 500000 bps

UFR_STATUS DL_API SetUartSpeed(uint32_t baud_rate);
UFR_STATUS DL_API SetDefaultUartSpeed(uint8_t reader_type, uint8_t comm_type, IN c_string port_name);

Mac OS virtual COM port support