Add ChipNorm_TM1637 library (#7146)

* Update repositories.txt

* Update repositories.txt

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Co-authored-by: Per Tillisch <[email protected]>

Author: chipnorm

repositories.txt

@@ -8531,3 +8531,4 @@ https://github.com/Bridgetek/EVE1-Arduino-Dev
 https://github.com/TamsinRose/CAN_Message_Arduino
 https://github.com/stm32duino/X-NUCLEO-IKS5A1
 https://github.com/fermeridamagni/arduino-minimal-ultrasonic
+https://github.com/chipnorm/TM1637