Add submission # 5325

#5325

Author: ArduinoBot

registry.txt

@@ -7556,3 +7556,4 @@ https://github.com/arduino-libraries/Arduino_OPC_UA.git|Arduino|Arduino_OPC_UA
 https://github.com/RobTillaart/AD5660.git|Contributed|AD5660
 https://github.com/MonHauVD/PlayNote.git|Contributed|PlayNote
 https://github.com/gi0rg0sPapamichail/QuickESPNow.git|Contributed|QuickESPNow
+https://github.com/1e1/Arduino-FastTimer.git|Contributed|FastTimer