Feature #42: Active Directory Interop Upgrade

AD Interop moved to Disco.Services; Supports multi-domain environments,
sites, and searching restricted with OUs.

Disco.Models/Interop/ActiveDirectory/ActiveDirectorySearchResult.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.DirectoryServices;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Disco.Models.Interop.ActiveDirectory
+{
+    public class ActiveDirectorySearchResult
+    {
+        public ActiveDirectoryDomain Domain { get; set; }
+        public string SearchRoot { get; set; }
+        public SearchResult Result { get; set; }
+    }
+}