Get file counts use case with search criteria

[GPortas]

What this PR does / why we need it:

Allows to get file counts specifying search criteria, required for the SPA files tab.

Which issue(s) this PR closes:

• Closes #90

Related Dataverse PRs:

• Depends on https://github.com/IQSS/dataverse/pull/9985

Special notes for your reviewer:

getDatasetFilesTotalDownloadSize IT are failing due to unmerged PR: https://github.com/IQSS/dataverse/pull/9960, so I have skipped them in the code so the GitHub action can deploy the package.

Suggestions on how to test this:

• Visual inspection of the code
• Check unit and integration tests execution in GitHub actions

Is there a release notes update needed for this change?:

Add FileSearchCriteria to GetFileCounts use case

Additional documentation:

None

[kcondon]

@GPortas Github actions passes but publish-gpr fails. Not sure whether this is ok to merge.