Add a helper method to help apps to perform pre render action on root component

Author: deepueg

android/lib/src/main/java/com/ern/api/impl/navigation/ElectrodeBaseActivity.java

@@ -145,6 +145,7 @@ private NavigationLaunchConfig createNavLaunchConfigInternal() {
     @CallSuper
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        preRootComponentRender();
         if (mainLayout() != NONE) {
             setContentView(mainLayout());
         }
@@ -156,6 +157,14 @@ protected void onCreate(Bundle savedInstanceState) {
         setupNavBar();
     }
 
+    /**
+     * Override this to perform any action that needs to be performed before the root component is first rendered.
+     * Some apps might only choose to initialize the container inside an activity. This method can act as a helper method for them to perform init.
+     */
+    protected void preRootComponentRender() {
+        // Do nothing here, override if needed.
+    }
+
     @Override
     protected void onDestroy() {
         super.onDestroy();