Added a race importer. Added imported races to visualizer. Made it so that the host sets the race. Refactored server to no longer be dependant on a specific race. Tested functionality of map manually. Some bugs found and listed below.

#implement #testmanual #story[1275]

Known bugs:
 * Can't move
 * Map is off center in lobby view.
 * 3D Map is off center

src/main/java/seng302/model/ServerYacht.java

@@ -1,5 +1,6 @@
 package seng302.model;
 
+import java.util.HashMap;
 import javafx.scene.paint.Color;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -9,10 +10,6 @@ import seng302.model.mark.Mark;
 import seng302.model.token.TokenType;
 import seng302.utilities.GeoUtility;
 
-import java.util.HashMap;
-import java.util.Observable;
-import java.util.Observer;
-
 /**
  * Yacht class for the racing boat. <p> Class created to store more variables (eg. boat statuses)
  * compared to the XMLParser boat class, also done outside Boat class because some old variables are