Extend Get Collection endpoint to include child object count

[GPortas]

Overview of the Feature Request

Extend Get Collection endpoint to include child object count.

This will potentially use:

dataverse/src/main/java/edu/harvard/iq/dataverse/Dataverse.java

Line 49 in f4380ea

@NamedQuery(name = "Dataverse.ownedObjectsById", query = "SELECT COUNT(obj) FROM DvObject obj WHERE obj.owner.id=:id"),

What kind of user is the feature intended for?
API User

What inspired the request?
SPA needs

What existing behavior do you want changed?
None

Any brand new behavior do you want to add to Dataverse?
Extend Get Collection endpoint to include child object count.

Any open or closed issues related to this feature request?

Are you thinking about creating a pull request for this feature?
Yes

[pdurbin]

Closed by this PR:

• Added new option in getDataverse endpoint for optionally retrieving child count #11259