Add EventBus dependency

src/main/java/app/Main.java

@@ -1,6 +1,9 @@
 package app;
 
 import java.io.IOException;
+
+import com.google.common.eventbus.EventBus;
+
 import javafx.application.Application;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Parent;
@@ -10,6 +13,8 @@ import javafx.stage.Stage;
 
 public class Main extends Application {
 
+  EventBus eventBus;
+
   /**
    * Boilerplate function to launch the application
    */
@@ -40,4 +45,8 @@ public class Main extends Application {
     window.setScene(scene);
     window.show();
   }
+
+  public EventBus getEventBus() {
+    return this.eventBus;
+  }
 }