* QrCodePosterTemplateCache implementation

* update tests

* remove QrCodePosterTemplateCache

* rename tests

* Timber.e > Timber.d

Co-authored-by: Lukas Lechner <lukas.lechner@sap.com>
Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>