Performance improvements, refactoring of multi-tenant support, split Alias and Tenant entities for cleaner separation of concerns, create an additional site during installation for demonstratng multitenancy

Oqtane.Shared/Models/Tenant.cs

@@ -5,9 +5,8 @@ namespace Oqtane.Models
     public class Tenant
     {
         public int TenantId { get; set; }
-        public string Alias { get; set; }
+        public string Name { get; set; }
         public string DBConnectionString { get; set; }
         public string DBSchema { get; set; }
-        public int SiteId { get; set; }
     }
 }