QR Code scanning to check-in (EXPOSUREAPP-5305) (#2507)

* Setup deep-linking to confirmation

* Update ConfirmCheckInFragment.kt

* Update fragment_confrim_check_in.xml

* Create Uri.kt

* Add navUri extension

* Handle deep-linking in MainActivity

* Check event decoding

* Add scan check-in qr code fragment

* Create viewModel and DI modules

* lint

* Create ViewModel

* Delegate work to view model

* use viewmodel

* Add unit test for navUri

* Adjust data

* Add unit tests for deep-linking

* lint

* Remove + from id references

* Add TODO

* Add unit tests

* Add tests

* add ToDo

* Fix test

* Deep linking for Event Registration (EXPOSUREAPP-5305) (#2502)

* Handle deep-linking and shortcuts

* lint

* Fillin intent in Onboarding

* Lint

* Delete ConfirmCheckInFragment.kt

* Fix test