Create Rock_paper_seasor.cpp

[Sirsha2468]

Here's how this "Rock, Paper, Scissors" game works:

1. The computer randomly selects either Rock (R), Paper (P), or Scissors (S).
2. The player is prompted to enter their choice (R, P, or S), or they can enter Q to quit.
3. The game determines the winner based on the player's choice and the computer's choice.
4. The game continues until the player decides to quit.