4d4eab39e8
Adds extension methods for `ArchetypeModel` and `ArchetypeFieldsetModel` for converting to Umbraco's `IPublishedContent`. Included unit-tests to support the deserialization and verify property-value retrieval. Modifies `ArchetypePropertyModelExtensions.CreateDummyPropertyType` extension method, to test if the `PropertyValueConvertersResolver` is available, (otherwise the unit-tests throw an exception from Umbraco's `PublishedPropertyType`).