Hope to integrate WaveDrom like mermaid

[POMIN-163]

Hope to integrate WaveDrom like mermaid.

when i installed next theme, i can use this to render a pie chart.

{% mermaid pie %}
"Dogs" : 386
"Cats" : 85
"Rats" : 15
{% endmermaid %}

Similarly, WaveDrom can render the wavejson to a wave picture, use https://svg.wavedrom.com to generate a svg.

such as this:

<img src="https://svg.wavedrom.com/{signal:[{name:'clk',wave:'p......'},{name:'bus',wave:'x.34.5x',data:'head body tail'},{name:'wire',wave:'0.1..0.'}]}"/>

preview:

the WaveDrom site: https://github.com/wavedrom/wavedrom
I sincerely invite you to try it. It's so amazing.

[stevenjoezhang]

WaveDrom added #655