Add submission # 3715

#3715

Author: ArduinoBot

registry.txt

@@ -6562,3 +6562,5 @@ https://github.com/ArtronShop/ATD3.5-S3_Library.git|Contributed|ATD3.5-S3
 https://github.com/AlfredoSystems/PestoLink-Receive.git|Contributed|PestoLink-Receive
 https://github.com/arduino279/Serial-Monitor.git|Contributed|Serial_Monitor
 https://github.com/amiga68k/electuno.git|Contributed|electuno
+https://github.com/s-light/slight_mapping.git|Contributed|slight_mapping
+https://github.com/s-light/slight_easing.git|Contributed|slight_easing