Row objects and Cell styling

This commit introduces Row and Cell entities, that will replace the arrays passed in previously.
It also adds support for Cell styling (instead of Row styling only).

src/Spout/Writer/ODS/Creator/ManagerFactory.php

@@ -46,7 +46,7 @@ class ManagerFactory implements ManagerFactoryInterface
         $fileSystemHelper->createBaseFilesAndFolders();
 
         $styleManager = $this->createStyleManager($optionsManager);
-        $worksheetManager = $this->createWorksheetManager();
+        $worksheetManager = $this->createWorksheetManager($styleManager);
 
         return new WorkbookManager(
             $workbook,
@@ -60,14 +60,15 @@ class ManagerFactory implements ManagerFactoryInterface
     }
 
     /**
+     * @param StyleManager $styleManager
      * @return WorksheetManager
      */
-    private function createWorksheetManager()
+    private function createWorksheetManager(StyleManager $styleManager)
     {
         $stringsEscaper = $this->helperFactory->createStringsEscaper();
         $stringsHelper = $this->helperFactory->createStringHelper();
 
-        return new WorksheetManager($stringsEscaper, $stringsHelper, $this->entityFactory);
+        return new WorksheetManager($styleManager, $stringsEscaper, $stringsHelper);
     }
 
     /**