Add rock paper scissors
Add game_rules class
Update game
Add ai and player classes
Fix 'determine_winner' method; AI outputs correct game resutls
Make rock_paper_scissor class more conscice
Extracted PLAYER_VS_AI_RULES to new class
Merge branch 'SRS_rock_paper_scissor'

* SRS_rock_paper_scissor:
  Extracted PLAYER_VS_AI_RULES to new class
  Make rock_paper_scissor class more conscice
  Fix 'determine_winner' method; AI outputs correct game resutls
  Add ai and player classes
  Update game
  Add game_rules class
  Add rock paper scissors