Change name of duce to Deuce
Resolve test case with split flow
Add test case :: win for player B
merge with upstream
solved playerBWinFirstFourBallShouldReturnWinForPlayerB
refactor remove hardcode of playerName
extract isGameOver() and getTheWinner() for easy to read in getScore()
change checking sequence
add Failed TestCase playerAWinOneBallAfterDeuceShouldReturnAdvantagePlayerA