Implemented 'Race' class

- Boats can be added to a race
- calling getFinishedBoats() will return a list of boats in the order that they finished

src/main/java/seng302/Race.java

@@ -0,0 +1,37 @@
+package seng302;
+
+import java.util.ArrayList;
+import java.util.Random;
+import java.util.Collections;
+import java.util.List;
+
+
+public class Race {
+	private ArrayList<Boat> boats;
+
+	public Race(){
+		boats = new ArrayList<Boat>();
+	}
+
+	/*
+		Add a boat to the race
+		@param boat the boat to add
+	*/
+	public void addBoat(Boat boat){
+		boats.add(boat);
+	}
+
+	/*
+		Returns a list of boats in the order that they
+		finished the race (0 is first)
+
+		@returns a list of boats
+	*/
+	public Boat[] getFinishedBoats(){
+		// Shuffle the list of boats
+		long seed = System.nanoTime();
+		Collections.shuffle(this.boats, new Random(seed));
+
+		return boats.toArray(new Boat[boats.size()]);
+	}
+}