LPS-35667 Add logic to *ExportActionableDynamicQuery to automatically add model count to manifest summary
LPS-35667 Apply new pattern to portlet data handlers
LPS-35667 Implement composite keys in ManifestSummary
LPS-35667 Rename getClassName to getManifestSummaryKey to avoid possible misunderstandings
LPS-35667 Change default implementation of getManifestSummaryKey to avoid passing StagedModel object
LPS-35667 Count the exported DDM entities in Journal and PDT portlets
LPS-35667 Fix test
LPS-35667 Regenerate *ExportActionableDynamicQuery