Handle sensitive properties in the Management API (#15936)

* Handle sensitive properties in the Management API

* Use Assert.Multiple to catch all failing tests in one run

---------

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

src/Umbraco.Core/Models/ContentTypeEditing/MemberTypePropertyTypeModel.cs

@@ -2,4 +2,9 @@
 
 public class MemberTypePropertyTypeModel : PropertyTypeModelBase
 {
+    public bool IsSensitive { get; set; }
+
+    public bool MemberCanView { get; set; }
+
+    public bool MemberCanEdit { get; set; }
 }