[AC-1751] AC Team code ownership moves: OrganizationUser (part 1) (#3487)

* Move OrganizationUser domain to AC Team ownership

* Namespaces will be updated in a separate commit

test/Core.Test/AdminConsole/AutoFixture/OrganizationUserFixtures.cs

@@ -0,0 +1,45 @@
+using System.Reflection;
+using AutoFixture;
+using AutoFixture.Xunit2;
+using Bit.Core.Entities;
+using Bit.Core.Enums;
+
+namespace Bit.Core.Test.AutoFixture.OrganizationUserFixtures;
+
+public class OrganizationUserCustomization : ICustomization
+{
+    public OrganizationUserStatusType Status { get; set; }
+    public OrganizationUserType Type { get; set; }
+
+    public OrganizationUserCustomization(OrganizationUserStatusType status, OrganizationUserType type)
+    {
+        Status = status;
+        Type = type;
+    }
+
+    public void Customize(IFixture fixture)
+    {
+        fixture.Customize<OrganizationUser>(composer => composer
+            .With(o => o.Type, Type)
+            .With(o => o.Status, Status));
+    }
+}
+
+public class OrganizationUserAttribute : CustomizeAttribute
+{
+    private readonly OrganizationUserStatusType _status;
+    private readonly OrganizationUserType _type;
+
+    public OrganizationUserAttribute(
+        OrganizationUserStatusType status = OrganizationUserStatusType.Confirmed,
+        OrganizationUserType type = OrganizationUserType.User)
+    {
+        _status = status;
+        _type = type;
+    }
+
+    public override ICustomization GetCustomization(ParameterInfo parameter)
+    {
+        return new OrganizationUserCustomization(_status, _type);
+    }
+}