[Request] Font Awesome support

[BlackYuzia]

@ciprianciurea @jonathancounihan
Can you add suport for use Font Awesome (https://fontawesome.com/icons) icons in Labels.
With they functional (like a spin, rotate, size etc)

Docs:
https://fontawesome.com/how-to-use/on-the-web/styling/animating-icons
https://fontawesome.com/how-to-use/on-the-web/styling/sizing-icons
https://fontawesome.com/how-to-use/on-the-web/styling/rotating-icons
https://fontawesome.com/how-to-use/on-the-web/styling/bordered-pulled-icons
https://fontawesome.com/how-to-use/on-the-web/styling/power-transforms
https://fontawesome.com/how-to-use/on-the-web/styling/layering

[JohnArcher]

Assuming you use the current free version of FontAwesome 5.8.x you can add these font icons like this to doughnutlabel:

{
    text: "\uf1ea",
    font: {
        size: '30',
        family: '"Font Awesome 5 Free"'
    }
}

You get the value for text from the all.css: Just look for the icon you would like to show, e.g. fa-network-wired, take the value of content and add the letter u between \ and f!

It is not as convinient as using the fa classes, but it works.

If it does not work you may have to wait until the css is loaded, so the creation of your chart should be put in a setTimeout() call.