Example of persistent data locally (Shared preferences, SQLite, or both)

[ramabit]

Add a new example (a new item on the main examples list) that send you to a new activity. That activity should allow you to create a new object (could use User model that is already created) and the app should save it using SharedPreferences, SQLite, or both. It should be another page that shows the list of objects saved locally.
The purpose is to have an implementation of Shared Preferences or SQLite usage with Kotlin.