Scaled down marks and boats to make 3rd person view more realistic

- Added boat and mark annotations to support selection at large camera distance
- Reduced collision radius to 15 m
- Fixed event startup and XML files as race was crashing on start

#story[1296]

racevisionGame/src/main/java/visualiser/Controllers/HostController.java

@@ -93,7 +93,7 @@ public class HostController extends Controller {
      */
     public void hostGamePressed() {
         try {
-            this.game = new Event(true);
+            this.game = new Event(false);
             connectSocket("localhost", 4942);
         } catch (EventConstructionException e) {
             Logger.getGlobal().log(Level.SEVERE, "Could not create Event.", e);