Add ReactInstanceEventListener for Venice and expose in FbReactInstanceHolder

Summary:
Add ```ReactInstanceEventListener``` for Venice and migrate Bridge-only callsites from
- FbReactInstanceHolder.getReactInstanceManager().addReactInstanceEventListener()
- FbReactInstanceHolder.getReactInstanceManager().removeReactInstanceEventListener()

To:
- FbReactInstanceHolder.addReactInstanceEventListener()
- FbReactInstanceHolder.removeReactInstanceEventListener()

Changelog:
[Android][Changed] - Add ReactInstanceEventListenerV2 for migration

Reviewed By: RSNara

Differential Revision: D31501785

fbshipit-source-id: e1cd03f07e28fbb995ea0a1bb76400089a461879

ReactAndroid/src/androidTest/java/com/facebook/react/testing/rule/ReactNativeTestRule.java

@@ -10,6 +10,7 @@ package com.facebook.react.testing.rule;
 import android.app.Activity;
 import android.view.ViewTreeObserver.OnGlobalLayoutListener;
 import androidx.test.rule.ActivityTestRule;
+import com.facebook.react.ReactInstanceEventListener;
 import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.ReactPackage;
 import com.facebook.react.ReactRootView;
@@ -90,7 +91,7 @@ public class ReactNativeTestRule implements TestRule {
             // This threading garbage will be replaced by Surface
             final AtomicBoolean isLayoutUpdated = new AtomicBoolean(false);
             mReactInstanceManager.addReactInstanceEventListener(
-                new ReactInstanceManager.ReactInstanceEventListener() {
+                new ReactInstanceEventListener() {
                   @Override
                   public void onReactContextInitialized(ReactContext reactContext) {
                     final UIManagerModule uiManagerModule =