Support createConicGradient

[jacobp100]

Issue or Feature

• If this is an issue with installation, I have read the troubleshooting guide.

Steps to Reproduce

var Canvas = require('canvas');
var canvas = Canvas.createCanvas(200, 200);
var ctx = canvas.getContext('2d');

ctx.createConicGradent(...)

This is relatively new in canvas - https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/createConicGradient

Apparently Cairo supports this via mesh gradients - https://lea.verou.me/blog/2015/06/conical-gradients-today/

Another reason was that Cairo, the graphics library used in Chrome and Firefox had no way of drawing a conical gradient. However, this changed a while ago, when they supported mesh gradients, of which conical gradients are a mere special case.

Your Environment

• Version of node-canvas (output of npm list canvas or yarn list canvas):
• Environment (e.g. node 20.9.0 on macOS 14.1.1):