public virtual void StartRound()
{
if (IsRoundInProgress)
{
throw new InvalidOperationException("Live round in progress");
}
if (!_roundPlayersQueuedForNextRound.Any())
{
throw new InvalidOperationException("No players have wagered");
}
var roundInProgress = new BlackjackGameRound(_roundPlayersQueuedForNextRound);
_roundPlayersQueuedForNextRound.Clear();
_dealer.Deal(roundInProgress);
}