title: How set VLC as my app default Video player Flutter
body: <p>I writing an App that I want to use VLC Media Player as an external app in my App as a default video player.
  I test the VLC package for flutter but it doesn't support many features like subtitle, multi sounds track movie and etc. 
  I saw in many apps which they allow the user to choose an external player as the default player. How can I set this in Flutter?</p>