#6948: CatalogImportExport categoryProcessor does not support escaped delimiter

[serhii-balko]

Description

Allow export/import category name with category delimiter character.
After apply this fix, when exporting, the delimiter character in category mane will be quoted.
Example:
"Category / 1" =>"Category\/ 1".
And in import apply conversely process.

Fixed Issues

1. CatalogImportExport categoryProcessor does not support escaped delimiter #6948: CatalogImportExport categoryProcessor does not support escaped delimiter

Manual testing scenarios

1. Create Category with name, that contains category delimiter "Category /1 test".
2. Create any product and asigne this category.
3. Export this product.
4. File should be contain category name like "Category\/1 test".
5. Import this file as "Entity Type"="Products" and "Import Behavior"="Add/Update".
6. The Category filed in product should remain unchanged.
7. New category with name "1 test" should not be created.

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)