reactive-mvvm-android

Remove rx-java dependency and replace it with KotlinX-Coroutines

This release tackle some update migrations like moving from kotlintest to kotest and arrow Option deprecations.

Apart from that, just minor changes in order to be up to date with other libraries.

Key layers have been unit tested using multiple tecniques

• ViewModels and UI Layer using property based testing via kotlintest
• Data layer using parameterized test via Junit 5 Parameterized test

Simplify ViewModel in order to only have one LiveData (aka query property) and one LiveData (aka state property).

Move handling state logic to subscriber layer, aka the UI, simplify binding with only one state_change binding per required view

This change tries to simplify the testing effort

Migrate support library to AndroidX, this introduces breaking changes but not add nothing so only increase minor version.

Also, update other libs and tools to their last stable version.