Adding support to a new FPGA board on Chisel sample project using FuseSoc

This post originated from a live-tweed. The thread can be seen at https://twitter.com/carlosedp/status/1382057618114494465.

I'll show here how to add support for a new board, the Digilent ArtyA7, a very popular FPGA board based on Xilinx Artix7, to my Chisel ChiselBlinky project including FuseSoc support.