Add submission # 4357

#4357

Author: ArduinoBot

registry.txt

@@ -6961,3 +6961,4 @@ https://github.com/kalmak07/SensorNorm.git|Contributed|SensorNormalization
 https://github.com/SkHCrusher/TinyButton.git|Contributed|TinyButton
 https://github.com/D-314/IP2368-Arduino-Library.git|Contributed|IP2368
 https://github.com/maxpromer/AX-Mini.git|Contributed|AX-Mini
+https://github.com/leaphy-robotics/leaphy-extensions.git|Contributed|Leaphy Extensions