Added ability to modify/get the current form

CodenameOne/src/com/codename1/system/Lifecycle.java

@@ -130,6 +130,7 @@ public void start() {
         runApp();
     }
 
+
     /**
      * This method is invoked by start to show the first form of the application
      */
@@ -156,4 +157,20 @@ public void stop() {
      */
     public void destroy() {
     }
+
+    /**
+     * The current form within the application lifecycle which possibly differs from the one in the implementation
+     */
+    protected Form getCurrentForm() {
+        return current;
+    }
+
+    /**
+     * The current form within the application lifecycle which possibly differs from the one in the implementation
+     *
+     * @param current the new current Form
+     */
+    protected void setCurrentForm(Form current) {
+        this.current = current;
+    }
 }