title: Extract country code from phone number in flutter
body: <p>I have phone number as String like &quot;+91 96001 64500&quot;, <em>(Getting the data from google places API)</em>  I want to extract the phone number(without country code) as well as country code, without knowing the country (Country can be any country).
  How can I do this in flutter.</p>
  <blockquote>
  <p>Note: There is already another exact same question asked <a href="https://stackoverflow.com/questions/16809508/extract-code-country-from-phone-number-libphonenumber">Extract code country from phone number [libphonenumber]</a> but it's for android, I want it for flutter.</p>
  </blockquote>