New library addition (#6937)

* Update repositories.txt

* Update repositories.txt

* Update repositories.txt

Author: littlemanbuilds

repositories.txt

@@ -29,6 +29,7 @@ https://github.com/gavinlyonsrepo/ST7789_LTSM
 https://github.com/PTSolns/BMx280
 https://github.com/Pallob-Gain/packet_device
 https://github.com/gavinlyonsrepo/display16_LTSM
+https://github.com/littlemanbuilds/SnapshotBus
 https://github.com/littlemanbuilds/ESP32_MCPWM
 https://github.com/littlemanbuilds/Universal_Button
 https://github.com/gavinlyonsrepo/ST7735_LTSM