chore: add deno example

Dependent on deno 1.26.1

`deno run --unstable --allow-read --allow-write --allow-ffi example/index-deno.js`

.eslintrc.yml

@@ -6,6 +6,9 @@ parserOptions:
   ecmaVersion: latest
   sourceType: module
 
+globals:
+  Deno: readonly
+
 env:
   browser: true
   es6: true

example/index-deno.js

@@ -0,0 +1,31 @@
+import { performance } from 'https://deno.land/std@0.159.0/node/perf_hooks.ts'
+import * as path from 'https://deno.land/std@0.159.0/path/mod.ts'
+import { Resvg } from 'npm:@resvg/resvg-js'
+
+const __dirname = path.dirname(path.fromFileUrl(import.meta.url))
+
+const svg = await Deno.readFile(path.join(__dirname, './text.svg'))
+const opts = {
+  background: 'rgba(238, 235, 230, .9)',
+  fitTo: {
+    mode: 'width',
+    value: 1200,
+  },
+  font: {
+    fontFiles: ['./example/SourceHanSerifCN-Light-subset.ttf'], // Load custom fonts.
+    loadSystemFonts: false, // It will be faster to disable loading system fonts.
+    defaultFontFamily: 'Source Han Serif CN Light',
+  },
+  logLevel: 'debug', // Default Value: error
+}
+
+const t = performance.now()
+const resvg = new Resvg(svg, opts)
+const pngData = resvg.render()
+const pngBuffer = pngData.asPng()
+
+console.info('Original SVG Size:', `${resvg.width} x ${resvg.height}`)
+console.info('Output PNG Size  :', `${pngData.width} x ${pngData.height}`)
+console.info('✨ Done in', performance.now() - t, 'ms')
+
+await Deno.writeFile(path.join(__dirname, './text-out-deno.png'), pngBuffer)