ContactList-RoomDB-TypeConverters

Contact List App using Room Datbase and Type converters.

1. Add contact from AddRecordActivity
2. Create a entity data class, dao and database classes for Room.
3. Create Converter class to convert date to long while adding to Room DB and vice versa.
4. Show the contacts using recycler view.
5. Delete contact using dao and database.
6. Used DifferCallback to get and set the data to adpter using list.