Added get for sso config repo by revision date (#878)

src/Core/Repositories/ISsoConfigRepository.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using Bit.Core.Models.Table;
 
@@ -8,5 +9,6 @@ namespace Bit.Core.Repositories
     {
         Task<SsoConfig> GetByOrganizationIdAsync(Guid organizationId);
         Task<SsoConfig> GetByIdentifierAsync(string identifier);
+        Task<ICollection<SsoConfig>> GetManyByRevisionNotBeforeDate(DateTime? notBefore);
     }
 }