Backport - Add new feature: parse user-agent in CLI using npx ua-parser-js "[INSERT-UA-HERE]" and print the result in JSON format

(cherry picked from commit 150d3c6b4a)

package.json

@@ -153,6 +153,7 @@
     "dist",
     "src"
   ],
+  "bin": "./script/cli.js",
   "scripts": {
     "build": "uglifyjs src/ua-parser.js -o dist/ua-parser.min.js --comments '/^ UA/' && uglifyjs src/ua-parser.js -o dist/ua-parser.pack.js --comments '/^ UA/' --compress --mangle",
     "test": "jshint src/ua-parser.js && mocha -R nyan test/test.js",

script/cli.js

@@ -0,0 +1,4 @@
+#!/usr/bin/env node
+
+const UAParser = require('ua-parser-js');
+console.log(JSON.stringify(process.argv.slice(2).map(ua => UAParser(ua)), null, 4));