Move native modules into different packages for fb4a shared bundle

Reviewed By: javache

Differential Revision: D5536155

fbshipit-source-id: 4d4bb0415d3012f09e98e185a92a0e1f3fdbc474

Author: Kathy Gray

ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java

@@ -267,10 +267,10 @@ public static ReactInstanceManagerBuilder builder() {
       mPackages.add(coreModulesPackage);
     } else {
       mPackages.add(new BridgeCorePackage(this, mBackBtnHandler));
+      if (mUseDeveloperSupport) {
+        mPackages.add(new DebugCorePackage());
+      }
       if (!useOnlyDefaultPackages) {
-        if (mUseDeveloperSupport) {
-          mPackages.add(new DebugCorePackage());
-        }
         mPackages.add(
           new ReactNativeCorePackage(
             this,