Add FC0005748911 (#2440)

Author: ajsb85

repositories.txt

@@ -1750,6 +1750,7 @@ https://github.com/fire0shadow/SevSegSPI
 https://github.com/fire1/PulseCom
 https://github.com/firechip/Firechip_Analog_Devices_MAX14521E_Arduino_Library
 https://github.com/firechip/Firechip_Quectel_EG25-G_Arduino_Library
+https://github.com/firechip/Firechip_RV-8263_Arduino_Library
 https://github.com/firmata/arduino
 https://github.com/firmata/ConfigurableFirmata
 https://github.com/FirstBuild/Relay