set up user settings data table and access repository

src/App/Abstractions/Repositories/IRepository.cs

@@ -12,6 +12,7 @@ namespace Bit.App.Abstractions
         Task<IEnumerable<T>> GetAllAsync();
         Task UpdateAsync(T obj);
         Task InsertAsync(T obj);
+        Task UpsertAsync(T obj);
         Task DeleteAsync(TId id);
         Task DeleteAsync(T obj);
     }

src/App/Abstractions/Repositories/ISettingsRepository.cs

@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Bit.App.Abstractions
+{
+    public interface ISettingsRepository
+    {
+        Task<IEnumerable<IEnumerable<string>>> GetEquivablentDomains(string userId);
+    }
+}