Procedural approach refactor in String Calculator kata. Short descrip…

…tion of the kata in the main README.

Added 4 more FizzBuzz implementations: divisibility rule based, simpl…

…e modulo (%15 instead of %3 and %5) and two more dumb ones: array and list based

Added a benchmark to the Score Keeper kata and included it's results …

…in the README

Minor refactoring of the bowling kata:

- 'frame' package encapsulation
- flattened obsolete abstraction level (GameFrames class)
- improved methods naming for better readability

Final banking kata refactoring