* Add `PermissionCallbacks`

* Fix

* Clean tests

* Update permission_handler/CHANGELOG.md

Co-authored-by: Maurits van Beusekom <maurits@baseflow.com>

* Fix type

* Merge `PermissionCallbacks` to `PermissionActions`

* Fix format

* Fix test

* Convert all the variables to private

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Co-authored-by: Maurits van Beusekom <maurits@baseflow.com>