Created java and fxml dirs in PSD

the java dir contains the loader class and the handler classes
when the fxml subdir contains the fxml of the polling station dashboard

voting-station-gui/src/polling_station_dashboard/fxml/polling_station_dashboard.fxml

@@ -33,7 +33,7 @@
                      <left>
                         <ImageView fitHeight="65.0" fitWidth="66.0" BorderPane.alignment="CENTER">
                            <image>
-                              <Image url="@../pictures/barcode.png" />
+                              <Image url="@../../pictures/barcode.png" />
                            </image>
                         </ImageView>
                      </left>

voting-station-gui/src/polling_station_dashboard/java/PollingStationDashboardController.java

@@ -0,0 +1,7 @@
+package polling_station_dashboard.java;
+
+/**
+ * Created by Vladimir Eliezer Tokarev on 28/05/2016.
+ */
+public class PollingStationDashboardController {
+}

voting-station-gui/src/polling_station_dashboard/java/PollingStationDashboardLoader.java

@@ -0,0 +1,7 @@
+package polling_station_dashboard.java;
+
+/**
+ * Created by Vladimir Eliezer Tokarev on 28/05/2016.
+ */
+public class PollingStationDashboardLoader {
+}