Messenger example - register, confirm, and unregister user facts

• Load user facts from client and update DB contact
• Register and confirm email fact
• Unregister email fact
• Register and confirm phone fact
• Unregister phone fact

.gitlab-ci.yml

@@ -27,5 +27,6 @@ test-examples-ios:
   tags: 
     - ios
   script:
+    - ./xcode-remove-caches.sh
     - ./run-tests.sh examples-ios
   retry: 1