Add submission # 6502

#6502

Author: ArduinoBot

registry.txt

@@ -8255,3 +8255,4 @@ https://github.com/ArtronShop/ArtronShop_BL0940.git|Contributed|ArtronShop_BL094
 https://github.com/Init-io/InitMQTT.git|Contributed|InitMQTT
 https://github.com/RCmags/CN0391.git|Contributed|CN0391
 https://github.com/joshua-8/HCSRO4_attachInterrupt.git|Contributed|HCSRO4_attachInterrupt
+https://github.com/RobTillaart/TCRT5000.git|Contributed|TCRT5000