Move IMultiTenant to Volo.Abp.MultiTenancy namespace.

src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUser.cs

@@ -12,10 +12,8 @@ namespace Volo.Abp.Identity
 {
     //Add Name and Surname properties?
 
-    public class IdentityUser : AggregateRoot, IHasConcurrencyStamp, IMultiTenant
+    public class IdentityUser : AggregateRoot, IHasConcurrencyStamp
     {
-        public Guid? TenantId { get; protected internal set; }
-
         /// <summary>
         /// Gets or sets the user name for this user.
         /// </summary>

src/Volo.Abp/Volo/Abp/MultiTenancy/IMultiTenant.cs

@@ -1,6 +1,6 @@
 using System;
 
-namespace Volo.Abp.Domain.Entities
+namespace Volo.Abp.MultiTenancy
 {
     public interface IMultiTenant
     {