Attach all assertion points to the report

[vvolverine]

Current state

Feature file contains step like Then db tables updated accordingly. Under the hood this step perform validation in multiple tables in multiple columns... or nothing. If all validation points successful then step will be marked as 'green' and there is no way to understand from the final report what actually happens.

Expected behavior

All validation points will be added to the allure report as a single attachment to the step. The format will be like data table.
At list assertJ library should be supported. There is should be no impact to the end client.