Added documentation

#document

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

@@ -330,6 +330,7 @@ public class CanvasController {
                     boatGroups.add(boatGroup);
                     annotations.getChildren().add(boatGroup.getAnnotations());
                 } else {
+                    //Move annotations and boat to bottom of group keeping player ontop.
                     if (boatGroups.size() > 0) {
                         boatGroups.add(0, boatGroup);
                     } else {

src/main/java/seng302/fxObjects/BoatAnnotations.java

@@ -144,6 +144,9 @@ public class BoatAnnotations extends Group{
         return totalVisible;
     }
 
+    /**
+     * Sets these annotations to show more detailed info.
+     */
     public void setAsPlayer () {
         isPlayer = true;
         velocityObject.setVisible(true);

src/main/java/seng302/fxObjects/BoatGroup.java

@@ -352,6 +352,9 @@ public class BoatGroup extends Group {
         return boat.toString();
     }
 
+    /**
+     * Sets this boat to appear highlighted
+     */
     public void setAsPlayer() {
         boatPoly.getPoints().setAll(
           -BOAT_WIDTH / 1.75, BOAT_HEIGHT / 1.75,