Verify REST API for Catalogs.

Operations to be covered based on IBX-3757:

1. I want to create/edit/delete/copy Catalog
2. I want to change the status of a Catalog
3. I want to get the list of all Catalogs (with specific status or name)
4. I want to get the list of all possible filters
5. I want to get the list of sorting options
6. I want to preview the catalog with its products assigned.
7. I want to get the list of filters & sorting options applied for the specific catalog.