Proposal - Call Dealer/Player Hand scores once during `PlayerStay`

[Psypher9]

After the line with await MakeDealerFinish() neither the Player or the Dealer's scores should change. You might consider updating the following to only call for scores one time and use a local variable because the hands are being re-summed on every call. Perhaps this:

        public async Task PlayerStay()
        {
            playerStayed = true;
            await MakeDealerFinish();
            if (CheckDealerScore() == ScoreState.Bust)
            {
                GameOver("Player Won");
            }
            else if (GetDealerHandScore() < GetPlayerHandScore())
            {
                GameOver("Player Won");
            }
            else if (GetDealerHandScore() > GetPlayerHandScore())
            {
                GameOver("Dealer Won");
            }
            else
            {
                GameOver("Push");
            }
        }

could become:

        public async Task PlayerStay()
        {
            playerStayed = true;
            await MakeDealerFinish();
            int dealerScore = GetDealerHandScore(); 
            int playerScore = GetPlayerHandScore();

            if (CheckDealerScore() == ScoreState.Bust || dealerScore < playerScore )
            {
                GameOver("Player Won");
            }
            else if (dealerScore  > playerScore)
            {
                GameOver("Dealer Won");
            }
            else
            {
                GameOver("Push");
            }
        }