Ground work for Wino Calendar. (#475)

Wino Calendar abstractions.

Wino.Core/Synchronizers/Calendar/BaseCalendarSynchronizer.cs

@@ -0,0 +1,9 @@
+using Wino.Core.Integration;
+
+namespace Wino.Core.Synchronizers.Calendar
+{
+    public abstract class BaseCalendarSynchronizer<TNativeRequestType, TCalendarEventType> : BaseCalendarIntegrator<TNativeRequestType, TCalendarEventType>
+    {
+
+    }
+}

Wino.Core/Synchronizers/Calendar/OutlookCalendarSynchronizer.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Threading.Tasks;
+using Microsoft.Graph.Models;
+using Microsoft.Kiota.Abstractions;
+using Wino.Core.Domain.Entities.Shared;
+
+namespace Wino.Core.Synchronizers.Calendar
+{
+    public class OutlookCalendarSynchronizer : BaseCalendarSynchronizer<RequestInformation, Event>
+    {
+        public OutlookCalendarSynchronizer(MailAccount account)
+        {
+            Account = account;
+        }
+
+        public MailAccount Account { get; }
+
+        public override Task<Event> CreateCalendarEventAsync(RequestInformation request)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}