[V14] import/export media/document type endpoints (#16100)

* Working import/export media/document types

* WIP

* Refactoring of import doctype/media types

- added analyze endpoint to extract relevant data without fully processing the file
- split up import endpoints into POST & PUT
- removed availableAtAction as the new endpoint allows clients to call the POST/PUT endpoints with confidence
- Added a new service that is responsible for turning temp files into Import compatible XML and being able to extracty partial information from it

* Wrap persistance access in scopes

* Typos, formatting, clean-up

* PR feedback

* update openapi spec

* Changed deleteFile flag to _temporaryFileService.EnlistDeleteIfScopeCompletes

* Itty bitty typo

* Moved magic cleanup into its own method so orchestration can decide when.

---------

Co-authored-by: Sven Geusens <sge@umbraco.dk>
Co-authored-by: kjac <kja@umbraco.dk>

src/Umbraco.Core/DependencyInjection/UmbracoBuilder.cs

@@ -37,6 +37,7 @@ using Umbraco.Cms.Core.Services.ContentTypeEditing;
 using Umbraco.Cms.Core.DynamicRoot;
 using Umbraco.Cms.Core.Security.Authorization;
 using Umbraco.Cms.Core.Services.FileSystem;
+using Umbraco.Cms.Core.Services.ImportExport;
 using Umbraco.Cms.Core.Services.Querying.RecycleBin;
 using Umbraco.Cms.Core.Sync;
 using Umbraco.Cms.Core.Telemetry;
@@ -395,6 +396,11 @@ namespace Umbraco.Cms.Core.DependencyInjection
 
             // Segments
             Services.AddUnique<ISegmentService, NoopSegmentService>();
+            
+            // definition Import/export
+            Services.AddUnique<ITemporaryFileToXmlImportService, TemporaryFileToXmlImportService>();
+            Services.AddUnique<IContentTypeImportService, ContentTypeImportService>();
+            Services.AddUnique<IMediaTypeImportService, MediaTypeImportService>();
         }
     }
 }