Interoperability Onboarding and Information (EXPOSUREAPP-2730, EXPOSUREAPP-2733) (#1202)

* Import flag assets. Create init CountrySelectionList and Fragment

* Implement missing components. Create ViewModel and Repository for Interop

* fix wrong property usage

* Implement storage of selected countries

* Implement warn dialog

* Added navigation from country selection to tracing fragment

* Fixed lint errors

* Fix typo and build error

* Move navigation out of onResume

* Implement Warning dialog and do some code cleanup

* Begin of onboarding for Interoperability. Fix linting issues

* Implement onboarding for Interoperability (#1976)

* Implement skip path of interop screen in onboarding (#1976)

* Implement navigation logic for onBoarding (#1976)

* Fix linting issues

* Adjust country list and view to new UI (#2667)

* Merge OnboardingTracingFragment with country list (#2665)

* UI adjustments (#2665)

* Fix linting issues

* Implement Delta Onboarding logic (#2665)

* Adjust interoperability screens to new UI (#2730, #2733)

* Added navigation from country selection to tracing fragment

* Fix merge issues with interoperability branch

* Fix merge issues with interoperability branch

* Fix merge changes with 1.5.x branch

* Remove unused Formatter

* Remove import of unused Formatter

* Remove import of unused Formatter

* Fix linting issue

* Adjust UI to mock changes (#2730)

* Adjust fragment binding to new solution and code cleanup

* Adjust layout ids to guidelines. Comment strings.xml

* Moved back navigation event to ViewModel

* Move to DI and ViewModel navigation

* Improve accessibility

* Improve accessibility

* Adjusted UI to updated mockups. Clean-Up of InteroperabilityRepository and LocalData

* Refactoring and ViewModel use.

* Make detekt happy.

* Fix PR comments, typos, inline getString.

* Fix refactoring typo

Co-authored-by: Alexandru.Paulescu <alexandru.paulescu@sap.com>
Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>
Co-authored-by: Matthias Urhahn <darken@darken.eu>