Separation of core library from the UWP app.

Wino.Services/BaseDatabaseService.cs

@@ -0,0 +1,22 @@
+using CommunityToolkit.Mvvm.Messaging;
+using SQLite;
+using Wino.Core.Domain.Interfaces;
+
+namespace Wino.Services
+{
+    public class BaseDatabaseService
+    {
+        protected IMessenger Messenger => WeakReferenceMessenger.Default;
+        protected SQLiteAsyncConnection Connection => _databaseService.Connection;
+
+        private readonly IDatabaseService _databaseService;
+
+        public BaseDatabaseService(IDatabaseService databaseService)
+        {
+            _databaseService = databaseService;
+        }
+
+        public void ReportUIChange<TMessage>(TMessage message) where TMessage : class, IUIMessage
+            => Messenger.Send(message);
+    }
+}