add setCellFormat method in workbookView

cell/api.js

@@ -2770,7 +2770,7 @@ var editor;
   };
 
   spreadsheet_api.prototype.asc_setCellFormat = function(format) {
-    this.wb.getWorksheet().setSelectionInfo("format", format);
+    this.wb.setCellFormat(format);
     this.wb.restoreFocus();
   };
 

cell/view/WorkbookView.js

@@ -2097,6 +2097,10 @@
     }
   };
 
+	WorkbookView.prototype.setCellFormat = function (format) {
+		this.getWorksheet().setSelectionInfo("format", format);
+	};
+
   WorkbookView.prototype.emptyCells = function(options) {
     if (!this.getCellEditMode()) {
       this.getWorksheet().emptySelection(options);