Reads BoatDataSource into StreamedCourseXMLReader so the latter can function as a single source of static information for the race.

- Mock.StreamedCourseXMLReader populates participant and mark list from BoatDataSource
- Added CompoundMarker class to accommodate Mark data from Boat XML
- Had to check for Yacht type in Visualiser.BoatXMLReader
- Added a missing coordinate value to raceTest.xml
- Marker class still exists due to large number of tests, which should be transitioned to CompoundMark
- IMPORTANT: race is no longer functional

#story[881]

visualiser/src/main/java/seng302/Mock/BoatXMLReader.java

@@ -88,7 +88,7 @@ public class BoatXMLReader extends XMLReader {
         Element nBoats = (Element) doc.getElementsByTagName("Boats").item(0);
         for (int i = 0; i < nBoats.getChildNodes().getLength(); i++) {
             Node boat = nBoats.getChildNodes().item(i);
-            if (boat.getNodeName().equals("Boat")) {
+            if (boat.getNodeName().equals("Boat") && boat.getAttributes().getNamedItem("Type").getTextContent().equals("Yacht")) {
                 readSingleBoat(boat);
             }
         }