Calculation of upwind downwind leg given a boat, wind and next mark now works. created GeometryUtils class

Can accurately calculate if a boat is going upwind or downward using a line function for the wind vector from the gate and the boat position from the gate.

Requires knowledge of the next mark which requires the boat to have passed a mark. This could be fixed by extracting the leg number from the race status packet and mapping these to gates in an initalisation step

tags: #story[956]

src/main/java/seng302/controllers/CanvasController.java

@@ -435,7 +435,7 @@ public class CanvasController {
         return findScaledXY (unscaled.getLatitude(), unscaled.getLongitude());
     }
 
-    private Point2D findScaledXY (double unscaledLat, double unscaledLon) {
+    public Point2D findScaledXY (double unscaledLat, double unscaledLon) {
         double distanceFromReference;
         double angleFromReference;
         int xAxisLocation = (int) referencePointX;
@@ -468,4 +468,8 @@ public class CanvasController {
     List<BoatGroup> getBoatGroups() {
         return boatGroups;
     }
+
+    List<MarkGroup> getMarkGroups() {
+        return  markGroups;
+    }
 }