Add submission # 6328

#6328

Author: ArduinoBot

registry.txt

@@ -8149,3 +8149,4 @@ https://github.com/socialbodylab/UWB-MaUWB-AT.git|Contributed|UWB-MaUWB-AT
 https://github.com/tesla-jedi/PersistentJsonEEPROM.git|Contributed|PersistentJsonEEPROM
 https://github.com/earlephilhower/PicoLlama.git|Contributed|PicoLlama
 https://bitbucket.org/jamesneko/lazy-serial.git|Contributed|LazySerial
+https://github.com/Uiop3385/CommandHandler.git|Contributed|CommandHandler