Re #8576 - Fixed generating index file for generating empty CRL
Re #8576 - calling CryptographyService from CrlService, passphrase support
Re #8576 - CrlService implemented generate_crl_response(), prepared method generate_crl in CryptographyService
Re #8575 - Fixed an issue where when creating an index file the valid_to field was passed instead of the revocation_date field
Re #8575 - Implemented CrlService that allows the caller to generate a CA database index of revoked certificates
Added an integration test verifying its validity.Renamed NOT_BEFORE_AFTER_DATE_FORMAT constant to VALID_FROM_TO_DATE_FORMAT in certificate_service.py....