Uncomment other functions in owlib.c

void ds_write_bit(uint8_t bit);
uint16_t ds_read_bit(void);
void ds_write_byte(uint8_t byte);
uint8_t ds_read_byte(void);
owlib.c works totally correct

in main.c programm read 8 bytes of key
Program works with RFID-reader and send to COM-port

Works with both RD-3 and CP-Z2L