[libre-riscv-dev] nice timing diagram renderer

[Jacob Lifshay]

I found a nice open source timing diagram renderer:
https://wavedrom.com/

some pretty examples:
https://wavedrom.com/tutorial.html
https://wavedrom.com/tutorial2.html

I'm not 100% sure, but I think there is code to convert vcd files to
wavedrom's json format

Jacob