2014903984 - Improved the functionality of templates in the import / export of goods

Now you can create product import/export templates. The button has been fine-tuned. If you specify the name of the template, then according to the settings that will be made, after loading a template with the same name will be created. If you need to copy a template, you need to select the one you need, and then write a name, as a result a new one will be created with the current settings To delete a template, select the desired one and click delete. Deletion or new template will be visible only after page reload