Move Cell and Options to Entity folder (#429)

src/Spout/Writer/ODS/Manager/WorksheetManager.php

@@ -5,7 +5,7 @@ namespace Box\Spout\Writer\ODS\Manager;
 use Box\Spout\Common\Exception\InvalidArgumentException;
 use Box\Spout\Common\Exception\IOException;
 use Box\Spout\Common\Helper\StringHelper;
-use Box\Spout\Writer\Common\Cell;
+use Box\Spout\Writer\Entity\Cell;
 use Box\Spout\Writer\Entity\Worksheet;
 use Box\Spout\Writer\Manager\WorksheetManagerInterface;
 use Box\Spout\Writer\ODS\Helper\StyleHelper;