Add v2 namespace entrypoints to default namespace.

Author: taeold

package.json

@@ -32,6 +32,24 @@
     "./logger/compat": "./lib/logger/compat.js",
     "./logger": "./lib/logger/index.js",
     "./params": "./lib/params/index.js",
+    "./core": "./lib/v2/core.js",
+    "./options": "./lib/v2/options.js",
+    "./https": "./lib/v2/providers/https.js",
+    "./pubsub": "./lib/v2/providers/pubsub.js",
+    "./storage": "./lib/v2/providers/storage.js",
+    "./tasks": "./lib/v2/providers/tasks.js",
+    "./alerts": "./lib/v2/providers/alerts/index.js",
+    "./alerts/appDistribution": "./lib/v2/providers/alerts/appDistribution.js",
+    "./alerts/billing": "./lib/v2/providers/alerts/billing.js",
+    "./alerts/crashlytics": "./lib/v2/providers/alerts/crashlytics.js",
+    "./alerts/performance": "./lib/v2/providers/alerts/performance.js",
+    "./eventarc": "./lib/v2/providers/eventarc.js",
+    "./identity": "./lib/v2/providers/identity.js",
+    "./database": "./lib/v2/providers/database.js",
+    "./scheduler": "./lib/v2/providers/scheduler.js",
+    "./remoteConfig": "./lib/v2/providers/remoteConfig.js",
+    "./testLab": "./lib/v2/providers/testLab.js",
+    "./firestore": "./lib/v2/providers/firestore.js",
     "./v1": "./lib/v1/index.js",
     "./v1/analytics": "./lib/v1/providers/analytics.js",
     "./v1/auth": "./lib/v1/providers/auth.js",