first campaing bits

Sledgemapper.Shared/Entities/Campaign.cs

@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using Sledgemapper.Shared.Entities;
+
+public class Campaign
+{
+    public Guid Id {get;set;}
+    public string Name { get; set; }
+    public List<Map> Maps {get;set;}
+}

Sledgemapper.Shared/Entities/Session.cs

@@ -16,6 +16,11 @@ namespace Sledgemapper.Shared.Entities
         public MapEntityDeletedEventArgs(BaseMapEntity mapEntity) => MapEntity = mapEntity;
     }
 
+public class Map:Session
+{
+    
+}
+
     public class Session
     {
         public event EventHandler<MapEntityAddedEventArgs> MapEntityAdded;