Service API should support common drafts for catalog content

Description

This story adds capabilities to use the Service API when working with common drafts of catalog content. It enables a service consumer to create or edit the common draft of catalogs, nodes and entries. It also makes it possible to publish existing common drafts.

For updated documentation, see these developer guide topics/sections:

• Catalog Entries - https://world.episerver.com/documentation/developer-guides/Episerver-Service-API/catalog-restful-operations/Catalog-entries/ > Common draft entries
• Catalog - https://world.episerver.com/documentation/developer-guides/Episerver-Service-API/catalog-restful-operations/catalog/
• Catalog nodes - https://world.episerver.com/documentation/developer-guides/Episerver-Service-API/catalog-restful-operations/Catalog-nodes/ > Get common draft node s and subsequent sections