Enable diagnosis key upload to backend (#35)

* Moved camera permission check to dispatcher fragment

* Added illustrations for test result screen

* Updated result fragment to match new design

* Added constraints to status card

* Integrated submission result positive other warning fragment in ui flow

* add TAN fetching to the key submission transaction

* remove unneeded function

* Fix log message for fetching TAN

* Added submission done fragment to nav graph

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Added ability to dialog helper to create dialog without negative button

* Switched from AlertDialog.Builder to DIalogHelper

* use actual TAN (authCode) for key submission

set the TAN in the corresponding header field
fixes #8

* request permission to retrieve diagnosis keys

* permission needs to be requested again after dialog has been presented to the users
* trigger transaction to retrieve TAN and upload keys

Co-authored-by: Kolya Opahle <k.opahle@sap.com>