The clustering module connects multiple boards together

[salarizadi]

Hello everyone, I was able to make a board clustering module so that we can connect the boards through serial UART. For more information, go to the link below.

https://github.com/salarizadi/moddable-sdk/
https://github.com/salarizadi/moddable-sdk/tree/main/Modules/cluster

@phoddie Since GitHub hasn't added me to the list of contributors yet, you can put the module in one of the relevant folders, for example here