Node Red added functions for Cerbo

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RemoteGPIO: Adding Relays and Digital Inputs

This solution is mainly targeting Cerbo GX users that wants to extend Digital Inputs and Relays on their system. Please note that there is a conflict with Kwindrem’s RpiGpioSetup that is targeting Raspberry pi users, but we have some users that reports to have successful setup with rPI and RemoteGPIO. In order to have a reliable direct attached interface to the relay, I selected a Modbus/RTU based relay from Dingtian that attaches on the USB port of the Cerbo GX. There are many solutions for …