Done

This is shipped in 6.2.18 https://jira.magnolia-cms.com/browse/MGNLREST-197

Descriptiono

As a developer I want to know the total number of results, so I can inform the user, and in some cases so that my frontend can display an accurate scrollbar or other control type.

Input from customer:

"We are wanting in the Delivery API to have a way to see the total number of results for a given query so we can better manage pagination. When completing a query with an offset and limit, we are able to retrieve a given query in chunks which is helpful, but we also need the number total results so that we can know how many pages of data there are and produce a UI which includes Page numbers, not just next and previous. This seems to be common in API's which offer pagination so we would love to see that here."