Add submission # 6699

#6699

Author: ArduinoBot

registry.txt

@@ -8294,3 +8294,4 @@ https://github.com/sparkfun/SparkFun_Authentication_Coprocessor_Arduino_Library.
 https://github.com/TheProgrammerFundation/EasyArduino.git|Contributed|EasyArduino
 https://github.com/sparkfun/SparkFun_Apple_Accessory_Arduino_Library.git|Contributed|SparkFun Apple Accessory Arduino Library
 https://github.com/RobTillaart/I2C_CAT24M01.git|Contributed|I2C_CAT24M01
+https://github.com/Nezaemmy/Neza74HC595.git|Contributed|Neza74HC595