Rock, Paper, Scissors Coding demo

Includes command-line interface and tkinter GUI interface.

Files include

1. tkinter_start_gui: a sample starting gui demonstrating use of

   1. a tk.StringVar;
   2. a tk.Button with command attached
   3. a key bind

2. game_objects:

   1. Player and Game objects for Rock Paper Scissors
   2. A Command Line Interface (CLI) for running rock paper scissors

3. tkinter_rps: a tkinter GUI with

   1. A GUI for setting game options
   2. A GUI for running the game