Added Event class and junit test

- event class contains the time of specific event, related team/boat and even location eg. leg.

#implement #story[5]

src/main/java/seng302/Event.java

@@ -0,0 +1,77 @@
+package seng302;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * Event class containing the time of specific event, related team/boat, and
+ * event location such as leg.
+ */
+public class Event {
+
+	private long time;
+	private Boat boat;
+	private Leg leg;
+
+	public Event(long eventTime, Boat eventBoat, Leg eventLeg) {
+		this.time = eventTime;
+		this.boat = eventBoat;
+		this.leg = eventLeg;
+	}
+
+	/**
+	 * Sets the time for the event
+	 * @param eventTime the time for event in millisecond
+	 */
+	public void setTime(long eventTime) {
+		this.time = eventTime;
+	}
+
+	/**
+	 * Gets the time for the event
+	 * @return the time for event in millisecond
+	 */
+	public long getTime() {
+		return this.time;
+	}
+
+	/**
+	 * Gets the time in a formatted string
+	 * @return the string of time
+	 */
+	public String getTimeString() {
+		return (new SimpleDateFormat("mm:ss:SSS")).format(new Date(time));
+	}
+
+	/**
+	 * Sets the involved boat
+	 * @param eventBoat the involved boat
+	 */
+	public void setBoat(Boat eventBoat) {
+		this.boat = eventBoat;
+	}
+
+	/**
+	 * Gets the involved boat
+	 * @return the boat involved in the event
+	 */
+	public Boat getBoat() {
+		return this.boat;
+	}
+
+	/**
+	 * Sets the involved location/leg
+	 * @param eventLeg the involved leg
+	 */
+	public void setLeg(Leg eventLeg) {
+		this.leg = eventLeg;
+	}
+
+	/**
+	 * Gets the involved location/leg
+	 * @return the leg involved in the event
+	 */
+	public Leg getLeg() {
+		return this.leg;
+	}
+}

src/test/java/seng302/EventTest.java

@@ -0,0 +1,21 @@
+package seng302;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Test for Event class
+ * Created by Haoming on 7/03/17.
+ */
+public class EventTest {
+
+	@Test
+	public void getTimeString() throws Exception {
+		Leg leg = new Leg(035, 100, "Start");
+		Boat boat = new Boat("testBoat");
+		Event event = new Event(1231242, boat, leg);
+		assertEquals("20:31:242", event.getTimeString());
+	}
+}