Add test for one spare and next hits 3 pints
Fix test
Implement spare and next hits 3 pins
Merge branch 'feature/third_throw' into develop
Imprement one strike, and 3 pins and 4 ping at next frame
Add test for all strike game
Refactor score and hit

- use while instead of each_slice
Add private methods

- strike?
- spare?
- strike_score
- spare_score
Merge branch 'feature/refactor_score' into develop