Get Collection Items extension - count per object

[g-saracca]

Extend the use case to also return by default the count per object info.

The JSON payload of the search endpoint has been extended to include total_count_per_object_type for types: dataverse, dataset, and files when the search parameter "&show_type_counts=true" is passed in.

Depends on IQSS/dataverse#11138 and should be developed based on that GHCR docker image until is merged