Separation of core library from the UWP app.

Wino.Services/Threading/GmailThreadingStrategy.cs

@@ -0,0 +1,9 @@
+using Wino.Core.Domain.Interfaces;
+
+namespace Wino.Services.Threading
+{
+    public class GmailThreadingStrategy : APIThreadingStrategy, IGmailThreadingStrategy
+    {
+        public GmailThreadingStrategy(IDatabaseService databaseService, IFolderService folderService) : base(databaseService, folderService) { }
+    }
+}