[add] adds getHighScore function
[add] adds getHighScore function

nimblecode/nimblecode,jordanallen98/nimblecode,marksanghoonkim/nimblecode,rickyeh/nimblecode,nimblecode/nimblecode,marksanghoonkim/nimblecode,rickyeh/nimblecode,marksanghoonkim/nimblecode,LinearAtWorst/cogile,nimblecode/nimblecode,LinearAtWorst/cogile,jordanallen98/nimblecode,marksanghoonkim/nimblecode,rickyeh/nimblecode,nimblecode/nimblecode,rickyeh/nimblecode