Fix IContentBase.GetUdi() extension method to support document-blueprint entity type (#16939)

* Add tests for all UDI entity types

* Fix IContentBase UDI entity type for blueprints

* Remove redundant switch statements and reorder methods

tests/Umbraco.Tests.Common/Builders/ContentBuilder.cs

@@ -53,6 +53,7 @@ public class ContentBuilder
     private int? _sortOrder;
     private bool? _trashed;
     private DateTime? _updateDate;
+    private bool? _blueprint;
     private int? _versionId;
 
     DateTime? IWithCreateDateBuilder.CreateDate
@@ -145,6 +146,13 @@ public class ContentBuilder
         set => _updateDate = value;
     }
 
+    public ContentBuilder WithBlueprint(bool blueprint)
+    {
+        _blueprint = blueprint;
+
+        return this;
+    }
+
     public ContentBuilder WithVersionId(int versionId)
     {
         _versionId = versionId;
@@ -217,6 +225,7 @@ public class ContentBuilder
     {
         var id = _id ?? 0;
         var versionId = _versionId ?? 0;
+        var blueprint = _blueprint ?? false;
         var key = _key ?? Guid.NewGuid();
         var parentId = _parentId ?? -1;
         var parent = _parent;
@@ -253,6 +262,7 @@ public class ContentBuilder
 
         content.Id = id;
         content.VersionId = versionId;
+        content.Blueprint = blueprint;
         content.Key = key;
         content.CreateDate = createDate;
         content.UpdateDate = updateDate;