Fix adjusted end day time for event

[fidesio-xavier-masson]

See #25

[alinabasarabeanu]

We are having issues with the time not set. Can this PR be merged?

Warning: Undefined array key "bat_hour" in Roomify\Bat\Event\EventItemizer->createDayGranural() (line 221 of /var/www/html/vendor/roomify/bat/src/Event/EventItemizer.php).
Warning: Trying to access array offset on value of type null in Roomify\Bat\Event\EventItemizer->createDayGranural() (line 221 of /var/www/html/vendor/roomify/bat/src/Event/EventItemizer.php).
Warning: Trying to access array offset on value of type null in Roomify\Bat\Event\EventItemizer->createDayGranural() (line 221 of /var/www/html/vendor/roomify/bat/src/Event/EventItemizer.php).
Warning: Trying to access array offset on value of type null in Roomify\Bat\Event\EventItemizer->createDayGranural() (line 221 of /var/www/html/vendor/roomify/bat/src/Event/EventItemizer.php).
Warning: Undefined array key "bat_minute" in Roomify\Bat\Event\EventItemizer->createDayGranural() (line 222 of /var/www/html/vendor/roomify/bat/src/Event/EventItemizer.php).
Warning: Trying to access array offset on value of type null in Roomify\Bat\Event\EventItemizer->createDayGranural() (line 222 of /var/www/html/vendor/roomify/bat/src/Event/EventItemizer.php).
Warning: Trying to access array offset on value of type null in Roomify\Bat\Event\EventItemizer->createDayGranural() (line 222 of /var/www/html/vendor/roomify/bat/src/Event/EventItemizer.php).
Warning: Trying to access array offset on value of type null in Roomify\Bat\Event\EventItemizer->createDayGranural() (line 222 of /var/www/html/vendor/roomify/bat/src/Event/EventItemizer.php).