Check-in matching (EXPOSUREAPP-5694) (#2659)

* risk calculation

* refactoring

* mapping tests

* move risk calculation to different change list

* detekt

* refactoring

* compare byte array

* refactor guidHash

* merge 2.0.x

* clean up

* improve performance

* klint

* merge 2.0.x

* adapt tests

* revert unintended change

* db json

* change package

* klint

* clean up naming

* parallel matching

* comments

* klint

* limit parallel processing to max of 4

* merge

* move into one file

* change visibility

* fix test

* Revert to default ENV for deviceForTestersDebug

* Revert "Revert to default ENV for deviceForTestersDebug"

This reverts commit e98432fc

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>
Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>