LPS-33228 Making RepositoryModel a StagedGroupedModel - StagedGroupedModel is already GroupedModel and ClassedModel
LPS-33228 Apply interface changes to related proxy beans
LPS-33228 Apply changes to LiferayFileEntry - LiferayFolder - LiferayFileVersion to match with new interface
LPS-33228 Apply changes to CMISFolder - CMISFileEntry - CMISFileVersion according to interface changes