AchievementsDao

Data Access Layer that defines the CRUD operations for AchievementsTuple I want all reads and writes to be one-shot, so suspend functions are used

• https://developer.android.com/training/data-storage/room/async-queries#options

"Room uses its own dispatcher to run queries on a background thread. Your code should not use withContext(Dispatchers.IO) to call suspending room queries. It will complicate the code and make your queries run slower." says an Engineer from Google (even though it's not in the docs ...)

• https://medium.com/androiddevelopers/coroutines-on-android-part-iii-real-work-2ba8a2ec2f45