refactor/game footbal

[BassedWarrior]

• Rotated field horizontally, changed gameplay constants and created color palette
• Group colors in constant Class
• Refactor to use new Player class
• Added if __name__ == "__main__":
• New color palette
• Refactor to use new Ball class
• Class inheritance with new GameObject class
• New Pitch GameObject for play area
• Implemented Goal GameObject for scoring
• Grouped functionality into Game class
• Refactored main into function