Unity SDK package: authentication v1.3.0

Starting from v1.3.0 the SDK will cache twitch user data in PlayerPrefs. When the game startup again, the twitch initialization can restore the data. SDK will validate if access token is still valid and try to refresh if not. If initialization succeed, the game can start using the available twitch data. If initialization failed, the game should prompt the user to login to twitch.

async void Start()
{
     // although there is no explicit dependency at the moment, it's best to initialize the basic auth first
    await AuthController.InitAsync();
    
    // load twitch data from cache, validate, and refresh token if necessary
    var twitchData = await TwitchController.InitAsync();
    if (twitchData == null)
    {
        // init fail, user should login to twitch again
        twitchData = await TwitchController.LoginToTwitch(...);
        
        // if login succeed, twitch data is ready to use either in return object or by CurrentUser
        var id = TwitchController.CurrentUser.UserInfo.Id;
    }
    else
    {
        // twitch data is ready to use
        
        // CurrentUser is same as the twitch data return by InitAsync
        var id = TwitchController.CurrentUser.UserInfo.Id;
        
        // TwitchApi is also ready for use
        var users = await TwitchController.TwitchApi.Helix.Users.GetUsersAsync(new List<string>(){ id });
    }
}