Requires: https://jira.ez.no/browse/EZEE-3088

We should a basic Behat test for Form Block, to make sure it's working.

Things to test:
1) Form can be embedded in Form Block
2) Preview is correctly generated
3) Landing Page can be published
4) (potential) Submissions can be sent using that Landing Page?
Based on https://github.com/ezsystems/ezplatform-form-builder/blob/master/features/FormSubmissionsAdministration.feature