Merge pull request #3 from bomb0069/master

solved bothPlayerDrawWithFifteenShouldReturnFifteenAll
Formatting code
Refactoring code to remove duplicate condition
Add 4th test case :: playerB win in first ball
solve bothPlayerDrawWithFifteen and add one test fail
solve bothPlayerDrawWithFifteen and add one test fail
Merge conflict
Back to current  code
solve test playerBWinInFirstBall
Merge pull request #5 from armeo/master

solve test playerBWinInFirstBall
add fail test playerAWinFirstTwoBallShouldReturnThirtyLove
Merge pull request #6 from armeo/master

add fail test playerAWinFirstTwoBallShouldReturnThirtyLove
solved playerAWinFirstTwoBallShouldReturnThirtyLove
refactor to using Map to transform int of score to score String in getScore