moving stuff around

lib/android/app/src/main/java/com/reactnativenavigation/layout/LayoutFactory.java

 import android.app.Activity;
 
 import com.facebook.react.ReactInstanceManager;
-import com.reactnativenavigation.layout.impl.ReactRootViewController;
-import com.reactnativenavigation.layout.impl.SideMenuController;
+import com.reactnativenavigation.viewcontrollers.SideMenuController;
 import com.reactnativenavigation.viewcontrollers.BottomTabsController;
 import com.reactnativenavigation.viewcontrollers.StackController;
 import com.reactnativenavigation.viewcontrollers.ViewController;

lib/android/app/src/main/java/com/reactnativenavigation/layout/impl/ReactRootViewController.java → lib/android/app/src/main/java/com/reactnativenavigation/layout/ReactRootViewController.java

-package com.reactnativenavigation.layout.impl;
+package com.reactnativenavigation.layout;
 
 import android.app.Activity;
 import android.os.Bundle;

lib/android/app/src/main/java/com/reactnativenavigation/layout/impl/SideMenuController.java → lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/SideMenuController.java

-package com.reactnativenavigation.layout.impl;
+package com.reactnativenavigation.viewcontrollers;
 
 import android.app.Activity;
 import android.support.annotation.NonNull;
 import android.view.View;
 import android.view.ViewGroup;
 
-import com.reactnativenavigation.viewcontrollers.ParentController;
-import com.reactnativenavigation.viewcontrollers.ViewController;
-
 import java.util.ArrayList;
 import java.util.Collection;