add missing namespace

src/Accounts/Accounts/CommonModule/ContextAdapter.cs

@@ -25,6 +25,7 @@ using Microsoft.Azure.Commands.Common.Authentication;
 using Microsoft.Azure.Commands.ResourceManager.Common.ArgumentCompleters;
 using System.Linq;
 using System.Management.Automation;
+using Microsoft.Azure.Commands.Profile.Properties;
 
 namespace Microsoft.Azure.Commands.Common
 {