title: Get list of all wifi available in ios
body: <p>I have check all possible solutions to get list of all available Wifi's but nothing works for me. 
  I even try NEHotspotConfigurationManager API but it connect to wifi with predefined SSID. In my case I need to get the list only. </p>
  
  <p>Do we need entitlement document for NEHotspotNetwork?</p>