Replace chalk with colorette (#1511)

Remove 5 deps from production install:
`ansi-styles`, `supports-color`, `color-convert`, `has-flag`, `color-name`.

Also reduce deps when using PostCSS and SVGO together, since PostCSS
uses colorette.

Tested with `yarn install svgo`.

bin/svgo

@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 
-const { red } = require('chalk');
+const { red } = require('colorette');
 const { program } = require('commander');
 const makeProgram = require('../lib/svgo/coa');
 makeProgram(program);

lib/svgo/coa.js

@@ -2,7 +2,7 @@
 
 const FS = require('fs');
 const PATH = require('path');
-const chalk = require('chalk');
+const { green } = require('colorette');
 const { loadConfig, optimize } = require('../svgo-node.js');
 const pluginsMap = require('../../plugins/plugins.js');
 const PKG = require('../../package.json');
@@ -433,7 +433,7 @@ function printProfitInfo(inBytes, outBytes) {
     Math.round((inBytes / 1024) * 1000) / 1000 +
       ' KiB' +
       (profitPercents < 0 ? ' + ' : ' - ') +
-      chalk.green(Math.abs(Math.round(profitPercents * 10) / 10) + '%') +
+      green(Math.abs(Math.round(profitPercents * 10) / 10) + '%') +
       ' = ' +
       Math.round((outBytes / 1024) * 1000) / 1000 +
       ' KiB'
@@ -485,7 +485,7 @@ function checkWriteFileError(input, output, data, error) {
 function showAvailablePlugins() {
   const list = Object.entries(pluginsMap)
     .sort(([a], [b]) => a.localeCompare(b))
-    .map(([name, plugin]) => ` [ ${chalk.green(name)} ] ${plugin.description}`)
+    .map(([name, plugin]) => ` [ ${green(name)} ] ${plugin.description}`)
     .join('\n');
   console.log('Currently available plugins:\n' + list);
 }

package.json

@@ -93,7 +93,7 @@
   },
   "dependencies": {
     "@trysound/sax": "0.1.1",
-    "chalk": "^4.1.0",
+    "colorette": "^1.2.2",
     "commander": "^7.1.0",
     "css-select": "^4.1.3",
     "css-tree": "^1.1.2",