Create Duelist.java

/** Program to simulate rounds of duels between three expert marksman, Aaron, 
 *  Bob and Charlie. Each man has a different probability of being able to hit
 *  their mark. Each round follows the following strategy:
 *      1. Each man takes a turn in this order: Aaron, Bob, Charlie.
 *      2. The man whose turn it is shoots at the best marksman based on probability.
 *      3. If a man is hit he is killed.
 *      4. Turns are taken until one shooter remains - The greatest marksman.
 *  
 */